• The best-selling Baby Einstein 4-in-1 Music & Language Discovery Gym promotes babys learning from ages 0 to 36 months • 4 modes: lay and play, tummy time, seated play, on the go • Includes tummy time prop pillow to encourage neck muscle strength; 2 toy bars with 7 detachable sensory toys • Baby registry "must have"; Kick piano features 70+ melodies, phrases, & sounds • Teaches colors, numbers, shapes in English, Spanish, French, & German • 25+ minutes of continuous lights & music; builds motor skills • Piano rotates for seated play and detaches for on-the-go; 3 AA batteries not included • Machine wash mat, toys wipe clean; Dimensions: 18 x 34 x 27 inches