Description Children's diy assembling toy, which can help children develop independent thinking and hands-on ability. The healthy and safe materials kit allows your children to use them with confidence. It can be your kids good helper. Features -Color:Wood color -Material:Wood -Size:15.50X5.50X5.50cm/6.09X2.16X2.16in -Note: not included battery -Solar powered, diy solar windmill toy, suitable for your children to DIY and play. -The assembly method is relatively simple, so that children will not get bored because of the difficulty while thinking. -Not only help children spend their free time, but also help children develop the ability to think independently. -Stimulate children's thirst for knowledge and let them love science from an early age. -Kids DIY Science Experiment Projects can be a birthday, Christmas gift or festival gift for your kids, they will like it.Package list: 1 x set of solar windmill