Designed to make understanding of renewable and sustainable energy generation an exciting and tactile experience using solar, wind and water power. For indoor or outdoor use, this resource comes in a modular format with 4 interchangeable monitors to show differing outputs from the 3 interchangeable power heads (one base). Kit includes suggested activities and general teachers information. Made of high-impact plastic, the base is 7" x 10", the maximum height is 20", monitors are 3 1/2" in diameter and the kit includes 20 feet of clear tubing for the water module.