Floating puzzle toy that can be repurposed as child grows. Start with the basic floating puzzle pieces, once that's accomplished, find which Edu Foam puzzle pieces fits to reveal which matching, stackable water toy cup fits. Cups are sized to stack within each other and is a puzzle in itself. Tray Diameter: 12 1/2" (32 cm). Developmental Qualities include Fine/gross motor skills, Logic, Reasoning, Hand Eye coordination, Tactile sensory development plus is an EZ Grasp toy.