One purple hippo, 8 rainbow - colored teeth and 2 levels of musical play add up to hours of musical exploration! On Level 1, each tooth plays one of the 8 notes of the C - major scale (do, re, mi, etc.). On Level 2, each tooth plays a different familiar children's tune. The included songbook teaches students how to play simple songs by pressing the hippo's teeth in a specific order. Large buttons and non - slip padded feet mean that even small fingers and slippery desktops won't stop the musical fun. Made of durable plastic and includes 2 volume settings. Measures 8" x 7 1/4" x 6". Requires 3 button - cell batteries, included.