Our iMounTEK musical crib bell is created to offer smart solutions to parents' needs, features rotating adorable rattles, star and moon projection and music box, which includes 150 melodies. The baby nursery toy can project light onto the wall so that the baby can see the beautiful starry sky, the light is soft and not dazzling. Automatically switch between 3 colors of starry sky to improve your sweetie's sleeping environment. Install this crib musical mobile on baby crib bed or carriage, it will give the baby a sweet dream and help develop his/her abilities of grabbing, interaction and color perception. The crib mobile is fixed on a 0.78" -1.77". Its movable arm is adjustable and very easy to install. It is a very good gift for newborn 0, 3, 6, 12,18, 24months.