Polyester/Plastic Custom designed crib mobile features embroidered stars, planets, and a rocket ship Orbiting musical mobile plays nursery songs for 20 minutes, has volume control and on/off switch Rotating songs include Brahms Lullaby, Twinkle Twinkle Little Star and Rock-a-Bye Baby Provides visual/auditory stimulation and promotes brain development for baby Helps baby self soothe and is a top baby registry item Your little one will love watching this orbiting out of this world musical crib mobile. Constructed with trendy wooden cross arms this baby mobile includes two 4” sized velour embroidered stars, two 3 ½” blue planets with white embroidered stars and tan color rings and a 5” long custom rocket ship in the center. A blue velour scrunchie covers the mobile arm. This 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.