The Tracked Vehicle Model Science Experiment Kit is a perfect choice for children who love hands-on activities. With this kit, they can experience the joy of building their own vehicle. The tracked design ensures that the vehicle can conquer any road condition, providing endless fun for children. This kit not only entertains children but also stimulates their curiosity and creativity. Features -Color:Sky-blue -Material:ABS -Size:19.50X12.50X7.50cm/7.66X4.91X2.95in -Note: not included battery - The hardness of the ABS material can keep it not easy to deform under normal wear. - The tracked car model is simple to assemble, and can stimulate students hands-on ability. - This DIY tracked car model is safe to DIY and playing. You needn't worry about its safety. - Characteristic and with DIY design. Simple and generous design, smooth in lines. - The good workmanship of our DIY tracked car model will bring you a . Package list: 5 5 x screwdriver 5 x instruction book