This product is a small generator motor, it can exercise your students practical ability, train your students observation capability, thinking and analytical skills. Bright colors will appeal to students and let them learn with fun and enjoyment. This generator is made of stable material, which is durable and lasting for use. Features -Color:Assorted Color -Material:Plastic, motor -Size:18.00X10.00X7.50cm/7.07X3.93X2.95in -Rated power:1 (W) -Output voltage:8 (V) -Rated wind speed:3 ( /s) - A good and creative gift for students, who will be happy for that and love this driven generator. - This generator is a great generator model for elementary scientific experiments aids. - Small wind generator, train your student observation capability, thinking and cognition skills. - Made of stable material, this generator is very funny and creative, which is durable. - Happy and easy to learn. The science small wind motor can exercise your students practical ability. Package list: 1 x diy generator