Polyester/Plastic Plays nursery songs for 20 minutes Provides visual and auditory stimulation and promotes brain development for baby as animals rotate around with music Has volume control and an on/off switch for ease of use Helps baby self soothe and helps promote a good night sleep All hardware included to easily attach to most standard size cribs One light cream velour giraffe, two gray velour elephants and one cream velour lion circle around this charming musical mobile. A canopy of four leaves add to this jungle adventure. A cream velour scrunchie covers the mobile arm and the music box is decorated with a yellow and teal bird. This battery operated musical mobile plays nursery songs for 20 minutes, has an on/off switch and volume control. It plays Brahms Lullaby, Twinkle Twinkle Little Star and Rock a Bye Baby. Requires 3 AAA batteries not included.