Natural material: COTTONBEBE crib hanging toy is made of 60% organic cotton & 40% viscose form bamboo. Skin-friendly! Fall asleep easier with calming music：35 lullaby music,included 'Little Star', 'happy brithday', ' Merry Christmas' and so on. Sound is clear without noise, singing automatically stops after 30 minutes, you can choose and control. Continuous soothing music will help your baby to fall asleep faster. Musical crib mobile can also be soothing when your baby is awake or entertained, so let's choose the music your baby likes and enjoy it for a longer time! More smiles and less crying. Helps baby's brain development: The baby crib mobile is slowly rotating, your baby can see the stars flying, as if in the sky, which can well attract baby's attention and stimulate the baby's imagination and hands-on ability. Safe & Stable & Easy to install: For safety and save your time, All baby crib mobiles toys are already fixed on the claw arm for you, the plush toys are tied by professional workers to ensure stability and will not fall, you only need to install and fix the support bar and music box of the electric mobile. Nursery mobiles fit most cribs & Pack N Play.