10 months & up. This magical water cube is packed full of fun mysteries to discover! Pour water into the opening and rotate the cube to prompt different filtering actions. Each corner features a unique pattern of holes that cause the water to stream into unexpected shapes. Works great in the bathtub or with water discovery tables and pools. Included: 1 STEM Water Magic Cube: Blue. Size: 3.08" x 3.08" x 3.08".