18 months & up. Fill the funnel and watch the wheels turn! This sand and water wheel is the perfect toy for your classroom sand and water table. Pour water, small stones, and sand in the funnel slowly to start off and then faster and faster and study the different ways the wheels react. Made from high-quality, non-toxic plastics. Includes: Double sand and water wheel and removable funnel. Size: 5.25"L x 8.13"W x 14"H.