Adopting eco-friendly material, non-toxic and no pollution, safe to use.It can improve kid's ability to observe and think, cultivating their interests in science.High quality electronic components and accessories make it has stable performance, more durable.A perfect present for your kids to promote their ability development.Type: STEM ToysRecommend Age: greater than 10years oldBattery: 2 x AA(not included)colour:Photo colorMaterial:Wood, electronic components, plastic parts, metal partsPackage Contents:1 x Assembly car toy(The color of the plastic accessories is randomly sent, and the specified color cannot be selected)Only the above package content, other products are not included.Note: Light 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.