This children's classic with its touch of whimsy should be your child's first electricity kit. The highly visual, step-by-step instructions enable young children to play independently. Includes 18 total acitivites in which your child will learn to spin motors and pinwheels, light lights, buzz buzzers, send coded messages, test what conducts and more! Requires a D cell battery (not included). 40-page book, for ages 6 and up.