PicassoTiles Building Blocks Classic Brick 28PC Stackable Platform Foundation Base Plate Multi Color Set for Build Block Bricks Compatible with All Major Brands STEM Construction Kit Kids Age 3+ PBS03

Steve Spangler All About Air Science Kit – Hands-On Science Kit for Kids with 7+ Activities, Great STEM Tools for Classroom and Home Learning

Cutedeer 108 Piece Magnetic Tiles, Magnet Building Blocks Set for Kids Toddlers, STEM Construction Toys with Gift Box for All Ages Boys Girls

OWI Inc Robotic Arm Edge | No Soldering Required | Extensive Range of Motion on All Pivot Points

Excellerations Mini All Build Tabletop Construction Set - 85 Pieces, STEM Toys, Preschool Manipulatives, Building Set for Ages 3 Years and Up, Engineering Toys for Home Learning

Lekebaby Classic Building Bricks, 200 Piece 2x4 Building Blocks STEM Creative Building Toys Compatible with All Major Brands, Educational Toy for Boys Girls 6 Years Old and Up

PicassoTiles 36pc Magnetic Tiles Rocket Set Construction Toy Magnet Building Block Engineering STEM Learning Child Brain Development Stacking Kit Window Door Playboard for All Ages 3 and Up PT36B

PicassoTiles 12PC Building Brick 10"x10" Large Road Baseplates City Street Traffic Parking Themed Roadway Foundation Plates Block STEM Construction Set Compatible with All Major Brands Ages 3+ PBS04

ISolderStore Soldering Practice Kit 4 Kits SMD SMT Kit DIY Electronic DIY Kits Soldering Project Soldering Training Board All in One

20-Pack of Ultra-Thin, Low Inertia Wheels, 10-Brass Axles, and 20-DVD/CD Spacers for Mousetrap/Rubber Band Powered car and All STEM Vehicle Projects.