ALEX Toys Rub a Dub Water Xylophone makes beautiful music! This Tub Tunes Water Xylophone is a real instrument that floats in the tub. Little musicians can learn to play songs with the included waterproof song sheets, or experiment by disconnecting the keys and sticking them to the bathtub walls. Works both in and out of the tub. Includes xylophone, waterproof sheet music and two mallets. Recommended for children 3 years of age and older.