The Nuby Stacking Bath Boats teach coordination and development. Stacking Bath Boats are a bath time classic and provide endless fun. Your baby can stack them together, put things inside, and watch the water drain from the bottom of the boat. Nuby has created another fun and educational item, designed with your baby in mind! FEATURES & BENEFITS: Turn boats upside down for waterfall fun, Stacking boats make storage a snap, Bright boats help baby learn colors, Perfectly sized for your child's small hands.