ASTEM 413PCS Plus Technic Parts Pull Back Motor Axle Pins Replacement Building Block Parts Regular size mechanical parts include bricks, bushings and

This 413-piece Technic parts pack is compatible with Lego Technic parts and comes in random colors. This 413-piece Technic parts pack is compatible with Lego Technic parts and comes in random colors. 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 robots, cars, cranes, construction vehicles, and other models. A fun and useful feature for your tech models, a great gift choice for building block enthusiasts.