Stem Building Sets
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Complete Rebuild Kit STD Standard OE Bowl Piston 94-98 Dodge Cummins 5.9 12V 6BT Ebay.com starting at $775.00
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Lego Batman 1992 Minifigure Poly Bag Set 30653 New Factory Sealed 2023 Retired Ebay.com starting at $8.90
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STD TEFLON Marine Bowl Overhaul Performance Rebuild for 94-98 Cummins 5.9 12V Ebay.com starting at $725.00
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Playbees Magnetic Building Tiles 100 Piece Set Magnet Building Blocks for Kids Ebay.com starting at $39.99
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NEW LEGO Mindstorm EV3 Education Expansion set 45560 Ebay.com starting at $159.00
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Lego Tribute To Galileo Galilei GWP Ideas Set 40595 New Factory Sealed 2023 Ebay.com starting at $39.90
Free Worldwide Shipping Expedited: No Next Day: No MiniFigures Rating: 98.8% |
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Every LEGO Castle Theme Set (193) Ever Made as of August 2024 (1978-2024) AS-IS Ebay.com starting at $26,875.00
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LEGO 10329 Icons Tiny Plants Build and Display Set for Adults Ebay.com starting at $32.00
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MOC Building Block Brick Baseplate Maple Lake City Street Castle Set Fit 98283 Ebay.com starting at $45.11
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67Pcs Magnetic Tiles Building Set Creative STEM Toys Set for Age 3+ Ebay.com starting at $26.89
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Complete Set of (18) Lego Disney Series 2 Minifigures 71038 New Sealed 2019 Ebay.com starting at $169.90
Free Worldwide Shipping Expedited: No Next Day: No MiniFigures Rating: 98.8% |
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Marble Run Premium Set（174 Pcs) Building Blocks Toys Educational STEM Set Ebay.com starting at $19.95
Free Worldwide Shipping Expedited: No Next Day: No Mazboot Imports LLC Rating: 99.3% |
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76-Piece Dinosaur Magnetic Tiles; Animal Magnet Tile Gift; Stem Building Set Ebay.com starting at $29.99
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🔥LEGO Mindstorms Education EV3 Core Set 45544 - 100% Complete with FREE Charger Ebay.com starting at $249.00
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My World Magnetic Building Block Set STEM Mine Craft Toys Tiles Pixel Cube 2cm Ebay.com starting at $19.99
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Mould King 11012 Roller Coaster Building Set Model Car Block Kit STEM Kid Toy Ebay.com starting at $169.99
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+.020 Oversize Engine Overhaul Performance MARINE Rebuild Kit for Cummins 12V Ebay.com starting at $725.00
Free Worldwide Shipping Expedited: No Next Day: No D-B-SALES Rating: 99.7% |
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LEGO Mindstorms Education EV3 Core Set 100% Complete FREE CHARGER 45544 Ebay.com starting at $279.00
Free Worldwide Shipping Expedited: No Next Day: Yes ONLYOEMS Rating: 99.4% |
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My World Magnetic Building Block Set STEM Mine Craft Toys Tiles Pixel Cube 2cm Ebay.com starting at $20.99
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69Pcs Magnetic Tiles Building Set Marble Run Creative STEM Toys Set for Age 3+ Ebay.com starting at $25.99
Free Worldwide Shipping Expedited: No Next Day: No Keep-Health Rating: 96.1% |
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MOC Parts 98283 Wall Stairs Ladder Desert Bricks Building Blocks Sets Khaki Tan Ebay.com starting at $8.69
Free Worldwide Shipping Expedited: No Next Day: No Toy Valor Rating: 99.1% |
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NEW! LEGO xtra City Town 853921 Brick Stickers Set LEGO Xtra Se Habla Esp. Ebay.com starting at $19.99
Free Worldwide Shipping Expedited: No Next Day: No BuffordBogueBricks Rating: 99.6% |
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Lego Tires Wheels Rims and Axles Lot Set - 163 Pieces Vehicle Car Truck Parts Ebay.com starting at $34.89
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Mould King 21004 Starship Destroyer Eclipse Dreadnought Spaceship Building Set Ebay.com starting at $419.47
Free Worldwide Shipping Expedited: No Next Day: No Gearhead Enterprises Rating: 98.0% |
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NEW LEGO Mindstorm EV3 Education Expansion set 45560 Ebay.com starting at $184.14
Free Flat Rate Shipping Expedited: No Next Day: No tokyotreasuretrove Rating: 99.5% |
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218Pcs Tent Fort Building Kit for Kids DIY STEM Construction Toy Set Tent Castle Ebay.com starting at $25.99
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LEGO Mindstorms Education EV3 Core Set 100% Complete 45544 From JAPAN Ebay.com starting at $298.99
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Contixo ST5 STEM Building Blocks 144 pcs Bristle Shape 3D Tiles Set Construction Ebay.com starting at $29.99
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48 Pcs Magnetic Tiles Building block For Kids, Education Building Set, STEM Toy Ebay.com starting at $22.49
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Kid e Wan Magnetic Building Set - 51 Pieces, STEM Fidget Toy, Educational Fun Ebay.com starting at $19.99
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Mag Shapes Magnetic Building Blocks Tiles STEM Toy Set 65 Pieces Ebay.com starting at $38.92
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LEGO Tires Wheels Rims Axles Vehicle Base Chassis Car Truck Set Lot - 126 Pieces Ebay.com starting at $19.89
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K’NEX 100 Unique Models Imagine Building Set 863 Pieces Ages 7+ Engineering STEM Ebay.com starting at $39.95
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LEGO Tire Wheel Black Vehicle Base 4x7 Chassis Race Car Set Lot 2441 - 45 Pieces Ebay.com starting at $9.89
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JOYIN Marble Run Premium Set（196 Pcs- Construction Building Blocks Toys, STEM... Ebay.com starting at $37.98
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My Gears Transport Building Set 118pc STEM Building Dynamic Models Early Ebay.com starting at $28.99
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3D Set Magnet Toys Tiles Clear Colors Magnetic Building Toy Magnet Blocks Kids Ebay.com starting at $49.77
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PicassoTiles 80 Piece Kids 3+ STEM Magnetic Building Block Set with Car Truck Ebay.com starting at $31.99
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Contixo ST4 Kids Magnet Toys Magnetic Tiles 112 PCs 3D Building Blocks STEM Set Ebay.com starting at $39.99
Free Worldwide Shipping Expedited: No Next Day: No Contixo Rating: 97.4% |
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Brand New STEM Building Set 342 Pieces Excavator Or Drilling Truck DIY Toy Kids Ebay.com starting at $19.95
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114 PCS Set Magnetic Building Blocks Educational Stem Castle Toys for 5 yo girls Ebay.com starting at $42.93
Free Worldwide Shipping Expedited: No Next Day: No annastore29 Rating: 98.7% |
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SmartMax My First Farm Animals STEM Magnetic Building Set for Ages 1-5 (38-PC) Ebay.com starting at $19.99
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Lego Batman 1992 Minifigure Poly Bag Set 30653 New Factory Sealed 2023 Retired Ebay.com starting at $5.00
Shipping Calculated by Location Expedited: No Next Day: No |
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LEGO Compatible Mech Robot Transforming Building Blocks Set Action Figure 542PC Ebay.com starting at $59.99
Free Worldwide Shipping Expedited: No Next Day: No Ms Limited Rating: 98.9% |
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HOGOKIDS 5 in 1 Remote Controlled STEM Building Toys RC Tank Robot Building Set Ebay.com starting at $44.99
Free Worldwide Shipping Expedited: No Next Day: No vatos-us2023 Rating: 98.1% |
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PicassoTiles 259 Piece Magnetic Brick Tile and Brick Building Set Ebay.com starting at $11.99
Free Worldwide Shipping Expedited: No Next Day: No PicassoToys Rating: 100.0% |
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PicassoTiles 60 Piece Set Magnet Building Tiles Ebay.com starting at $25.99
Free Worldwide Shipping Expedited: No Next Day: No PicassoToys Rating: 100.0% |
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MOC Parts 98283 Wall Stairs Ladder Desert Bricks Building Blocks Sets Khaki Tan Ebay.com starting at $27.99
Free Worldwide Shipping Expedited: No Next Day: No Toy Valor Rating: 99.1% |
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My Gears Transport Building Set 118pc STEM Building Dynamic Models Early Ebay.com starting at $28.99
Free Worldwide Shipping Expedited: No Next Day: No Bullseye Deals Rating: 97.4% |
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Mega Pokémon Gyarados Kinetic Motion Building Block Set - HGC24 - New Sealed Set Ebay.com starting at $135.00
Free Worldwide Shipping Expedited: No Next Day: No Yankee fly retro Rating: 98.8% |
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MOULD KING 21009 Sandcrawler Remote Control Star Wars Building Brick Toy Set UCS Ebay.com starting at $431.99
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PicassoTiles 512 Piece Magnetic Brick Tile and Brick Building Set Ebay.com starting at $16.99
Free Worldwide Shipping Expedited: No Next Day: No PicassoToys Rating: 100.0% |
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TEFLON STD Standard Bowl Overhaul Performance Rebuild Kit 94-98 Cummins 5.9 12V Ebay.com starting at $725.00
Free Worldwide Shipping Expedited: No Next Day: No D-B-SALES Rating: 99.7% |
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Mould King 11012 Roller Coaster Building Set Model Car Block Kit STEM Kid Toy Ebay.com starting at $139.99
$0.0 FreePickup Worldwide shipping Expedited: No Next Day: No B&J'S VG Rating: 98.4% |
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LEGO General Grievous & Wheel Bike Incomplete Set FREE Lightsabers Cape Printed Ebay.com starting at $57.85
Free Flat Rate Shipping Expedited: No Next Day: No Our LEGO World Rating: 100.0% |
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LEGO Carved Dragon Sword Handle Long Sword HILT Lot of 2 BLACK Matching Set Ebay.com starting at $5.33
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New LEGO Mushroom Book Set Printed Bookcover Happy Plant Food Vegetable Forest Ebay.com starting at $8.89
Free Flat Rate Shipping Expedited: No Next Day: No Our LEGO World Rating: 100.0% |
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Magnetic Tiles Clear Colors Magnetic Building Toy Magnet Blocks Kids 60 Pc Set Ebay.com starting at $24.99
Free Worldwide Shipping Expedited: No Next Day: No apsales1081 Rating: 99.4% |
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276PCS Robotics Construction Set Building Blocks Wedo 2.0 45300 Educational Kit Ebay.com starting at $27.98
Free Worldwide Shipping Expedited: No Next Day: No 2015allinone Rating: 98.8% |
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MagnetCubes Coaster Cubes™ Starter Magnetic Marble Roller Coaster Building Set Ebay.com starting at $39.99
Free Worldwide Shipping Expedited: No Next Day: No DesignNestUS Rating: 81.8% |
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Lego The Batman Batmobile 30455 Poly Bag Complete Set New Factory Sealed 2022 Ebay.com starting at $9.90
Free Worldwide Shipping Expedited: No Next Day: No MiniFigures Rating: 98.8% |
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Minecraft Magnetic Building Blocks Set Magnet Children Kid Stem Gift/Characters Ebay.com starting at $3.75
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1811 Piece Dinosaur World Tyrannosaurus Rex Building Block Toy Set STEM Build Ebay.com starting at $60.94
Free Worldwide Shipping Expedited: No Next Day: No Bricksmyheart Variety Store Rating: 98.3% |
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Mould King 3 in 1 STEM Remote Control Robot Building Set Changeable Electric Toy Ebay.com starting at $60.14
Free Worldwide Shipping Expedited: No Next Day: No Bricksmyheart Variety Store Rating: 98.3% |
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LEGO 6452127 Ideas The Insect Collection Building Set Ebay.com starting at $78.00
Free Worldwide Shipping Expedited: No Next Day: Yes vipoutlet Rating: 96.7% |
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Magnetic Tiles Toys, Kids Building Blocks Set, 3D Magnet Tile Girls Boys STEM To Ebay.com starting at $30.99
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MOC 9686 Technical Power Assembly Set Building Blocks Parts STEM Building Toys Ebay.com starting at $43.46
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LEGO Bricks Parts Pieces Blocks Bulk Lot By lbs Colors 1 Minifigure Every Pound Ebay.com starting at $11.99
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PicassoTiles 63 Piece Kids 3+ STEM Magnetic Building Block Set with Car Truck Ebay.com starting at $29.99
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K'nex 78630 STEM Education Simple Machines: Gears Building Set 198pcs Ages8+ New Ebay.com starting at $18.74
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+.020 for Cummins 12V Oversize Engine Overhaul Performance STD Bowl Rebuild Kit Ebay.com starting at $803.85
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SmartMax Power Vehicles Max Magnetic STEM Building Set Ages 3+ Ebay.com starting at $34.99
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Lot of 8 LEGO 11x8mm Wheel Rim Center Groove 42610 / 17.5x6mm Tire 92409 Set NEW Ebay.com starting at $3.89
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Magnetic Tiles, 110 PCS Magnet Building Blocks Set, Construction STEM Ebay.com starting at $24.99
Free Flat Rate Domestic Shipping Calculated International Shipping Expedited: No Next Day: No The Barn of Deals Rating: 97.9% |
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New LEGO Mindstorm EV3 Education Expansion set 45560 Unopened Ebay.com starting at $269.99
Free Worldwide Shipping Expedited: No Next Day: No Outdoor Magic Japan Rating: 98.8% |
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LEGO Rainbow Set of 3 Tiles HAPPY CLOUD Face Unisex Pride Printed 1x1 Smooth Ebay.com starting at $3.55
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New LEGO Ninja Sword Set KATANA PINK & Orange Translucent Trans Clear Blade Ebay.com starting at $9.78
Free Flat Rate Shipping Expedited: No Next Day: No Our LEGO World Rating: 100.0% |
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LEGO 14 x 9 mm Tire, Wheel and Axles Set Lot - 60 Pieces Total 74967 30028 4600 Ebay.com starting at $11.89
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Building Toys Kits 152 Piece STEM Set for Boys Creative Educational Building Ebay.com starting at $45.99
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168 Pcs Marble Run Building Blocks Classic Blocks STEM Toy Bricks Set Kids Race Ebay.com starting at $15.38
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Picasso Tiles 100 Piece 3D Color Magnetic Building Block STEM Set & NEW Ebay.com starting at $32.99
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New LEGO Food Set Kitchen Fridge Delivery Jam Honey Bee Milk with COW OJ Juice Ebay.com starting at $8.89
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New LEGO Beehive Honey Jar BEES Printed Hive Box Hunny Gift Barrel Table Set Ebay.com starting at $8.00
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New LEGO African American Head MAN Goatee Beard Matching Hands Set Brown Skin Ebay.com starting at $10.67
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LEGO 20215 Master Builder Academy Invention Designer - Steampunk Set Complete Ebay.com starting at $49.99
Shipping Calculated by Location Expedited: No Next Day: No PixelShippe Rating: 98.6% |
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Large Set Magnetic Educational Toys Building Blocks 114 Pc For Kids Toddlers New Ebay.com starting at $42.92
Free Worldwide Shipping Expedited: No Next Day: No annastore29 Rating: 98.7% |
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Magna-Tiles Classic Building Set - 100 Pieces (04300) Ebay.com starting at $79.99
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Lego Tribute To Galileo Galilei GWP Ideas Set 40595 New Factory Sealed 2023 Ebay.com starting at $23.00
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Lamborghini Aventador by Meccano STEM Supercar vehicle building set Ebay.com starting at $99.95
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Waloo Sports Jumbo Building Blocks - 43 Pc Set - Multiple Color Options Ebay.com starting at $49.99
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Magnetic 3D Building Tiles 100 Pc Set Geometrical Shapes STEM Toy Educational Ebay.com starting at $57.03
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New Rare Target Exclusive LEGO Set: Bean There Donut That - #40358 Sealed in Box Ebay.com starting at $33.99
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Vintage Playplax Rings Building Toy Set of 24 Incomplete Ebay.com starting at $14.99
Free Flat Rate Shipping Expedited: No Next Day: No TheRehomingExperts Rating: 99.6% |
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FAO Schwarz 753 Piece Build-A-Coaster Building Set Motorized Rollercoaster - NEW Ebay.com starting at $29.99
Shipping Calculated by Location Expedited: No Next Day: No Happy Findingz Rating: 98.6% |
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New LEGO Technic Porsche 911 RSR 42096 Race Car Building Set STEM 1580 Pieces Ebay.com starting at $199.48
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LEGO NIB 2000451 Panama Canal Retired STEM Education Set Ebay.com starting at $525.00
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110PCS Minecraft Magnetic Blocks World Set, STEM Kids Toys, Montessori Building Ebay.com starting at $79.95
Free Worldwide Shipping Expedited: No Next Day: No vengex_llc Rating: 97.2% |
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Magnetic Building Block 56 PCS STEM 3D Magnetic Tiles Magnetic Construction Set Ebay.com starting at $23.77
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My World Magnetic Building Block Set STEM Mine Craft Toys Tiles Pixel Cube 2cm Ebay.com starting at $15.99
Free Worldwide Shipping Expedited: No Next Day: No Q-Max Goods Rating: 96.3% |
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LEGO Monster Fish Set Lot of 2 ANGLERFISH Angler Fish Black Green Piranha FANGS Ebay.com starting at $25.80
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