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: About 7.00X6.00X0.50cm/ 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 a gift for your kids. - It is an essential model for teachers and students to learn about knowledge of water wheels.