Fisher-Price Stackin' Sounds Animals There's no wrong way to stack these colorful animal friends. Stack 'em, mix 'em up, and stack 'em up again Each animal friend is a different color and has its own unique rattle or jingle sound Just the right size for little hands to grasp, hold and stack Helps develop fine motor skills, eye-hand coordination and more Set includes a hippo, elephant and crocodile animal friend