The Butterfly Bouquet Musical Mobile plays Brahms' Lullaby. Helps baby develop eye tracking and sound perception skills. Universal mount fits most cribs. The fabric is made of 65% polyester/35% cotton. The characters are made of 100% polyester. Assembly instructions are included. Care instructions: spot clean only with soft cloth dampened in cold water and mild soap and line dry. Do NOT machine wash, bleach, tumble dry or iron.