Shake up playtime with this set of toy maracas and the Fisher-Price Deluxe Kick & Play Piano Gym, which features five light-up piano keys, a repositionable toy arch, a detachable keyboard, and four musical settings. As your baby grows from lay and play to tummy time to sitting up at the piano, you can change up the music and learning with Smart Stages technology! Let's hit it, baby!Where development comes into playSensory: Lots of bright colors, a variety of textures, and all those exciting songs, sounds, and phrases engage your baby's developing visual, tactile, and auditory senses.Gross Motor: With all that shaking, kicking, reaching, and pushing up, those little muscles are getting ready for big things!Curiosity & Wonder: Rewarding activities like pushing on the piano keys to hear fun tunes introduce little Mozarts to cause and effect, and keep your baby coming back to the gym again and again.