dspitwod Technical Gears Axle Pin Connectors Rubble Wheels Connectors Rack Gear Screw Track Building Brick Pieces Sets Compatible with Major Brand STEM Learning Kits for Kids Age 814 Years

1Listing Includes This listing packing including variety technical parts total 300 pieces Like Gear 12 16 20 24 40 tooth gears Rack Gear axle pin connector withwithout friction 4 rubbles wheels Various accessories can be widely applied to MOC Car construction and creation 2Great Quality ECO friendly ABS materials use Brick parts or gear connection is good neither loose nor tight great quality 3Compatible Technical parts are compatible with standard sized bricks from other Major Brands Variety of gears axle parts etc can be applied to a substitute for assembly designing and building your project like models of robots cars cranes engineering vehicles and etc 4 Inspiration Variety technical parts suit for DIY a creative model or create a new design a great addition do your model stuff 5GiftThis is great parts for kids or adult who love play building engineer project Great gift of festivals and holidays Childrens Day Christmas Halloween Thanksgiving New Years