Create and assemble your own motorized car robot with this DIY kit. The kit includes worm drive, belts, bearings, wheels, gears, and more, providing an educational and entertaining building experience for kids. Made of high quality material, these parts are wearable and have long service life. There are many kinds of gear parts and you can find one that better meet your need. They are also good replacement of old or broken parts Small parts, easy to use, great model making accessories for all kinds of cars, robots, etc. feature: Educational type: DIY Car Robot Kit age range: 8-12 years Colour:As Shown Material:Plastic Package Contents: 1x Material parts package Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.