Are you looking for a professional, yet affordable experiment equipment? Are you in search of a sturdy experiment equipment that offers you comfortable use experience? If your answer is yes, please come and take a look at this product Our professional DIY water wheel can meet your needs. It is one of the best choices for you.Features-Color: As shown-Material:Plastic-Size: About7.00X6.00X0.50cm/2.75X2.36X0.20in- Great DIY experiment toy to help children to have a hands-on experience.- It cultivates kids interest in physics and science.- Exploring physics energy conversion tips, novel teaching aids for kids student or school supplies.- It can be regarded as an gift for your kids.- It is an essential model for teachers and students to learn about knowledge of water wheels.Packing list: 1 x set of water wheel assembling accessory