ASTEM 413-Piece Building Block Set - Includes Pullback Motor, Interchangeable Axle Pins, and Standard Mechanical Components

This listing includes 413 packages containing various tech parts. This item is a generic brand product but is compatible with mainstream brand products. Please note. This 413-piece tech part pack is compatible with LEGO tech parts, and the colors are random. This 413-piece Technic part pack is compatible with LEGO Technic parts, and the colors are random. This STEM activity kit, a DIY creative model, allows you to freely assemble and create new designs. Perfect compatibility, easy to assemble and disassemble, with good compatibility between brick parts, neither loose nor tight. Can be used to build models such as robots, cars, cranes, and construction vehicles. Fun and useful features for your tech models, a great gift choice for building block enthusiasts.