The best-selling Baby Einstein 4-in-1 Kickinunes Music and Language Discovery Activity Gym supports fine and gross motor skill development and cause and effect skills; grows with baby from 0 to 36 months | 4 modes include lay and play, sitting up, tummy time, on the go; Helps baby strengthen neck muscles during tummy time; Piano includes 25 plus minutes of continuous lights and music plus teaches colors, shapes, and numbers in 4 languages: English, Spanish, French, and German | 7 sensory toys engage and promote fine and gross motor skills like reaching, pressing, and kicking; crinkle medallion, triangle rattle, BPA-free textured music note, flash cards, self-discovery mirror, piano toy and tummy time pillow; features 2 toy bars and kick piano; supports visual development | Baby registry ""must have""; Piano rewards babyàmoves with 70 plus melodies, sounds, lights, and phrases and can be used for tummy time or lay and play, flipped up for seated play, or detached for on the go | Dimensions: 18 x 34 x 27 inches; If your gym comes with ""try me"" batteries, be sure to replace with 3 AA batteries to keep the fun going (not included); Mat is machine washable, toys are easy to wipe clean