The DIY Tracked Vehicle Model Science Experiment Kit is a great toy for children. It not only allows them to have fun while building their own vehicle but also introduces them to scientific concepts. With its construction and stable materials, this kit is built to last, ensuring that your child can enjoy it for a long time. Features -Color:Sky-blue -Material:ABS -Size:19.50X12.50X7.50cm/7.66X4.91X2.95in -Note: not included battery - Made of sturdy and reliable ABS material, practical and convenient for longtime use. - The tracked Vehicle Model Making Material is conducive to improve academic performance. - The diy set is a wonderful toy for scientific experiment teaching prop to understand experiments. - Improves fine motor skills: enhances dexterity and coordination through the manipulation of small parts. - Sturdy and materials: constructed with materials to ensure longevity and durability. Package list: 1 1 x screwdriver 1 x instruction book