The 1-2-3 Musical Snail is appropriate for all growth periods of baby * Lock the wheels so baby can enjoy the snails large mirror and fun rocking motion * When baby is sitting, it can bat at the snail * Unlock the wheels for crawl along play * Baby will always be surprised with music, lights and sounds Wobble, wiggle, smile and giggle—this cheerful friend is fun in so many ways! For tummy time, baby will enjoy looking in the mirror, listening to music and sounds. For sit-up play, there’s back and forth rocking motion. And when baby’s ready to crawl, the snail will lead the way, wobbling along with lively music and dancing lights! Requires 2 AA batteries.