Features: 1.ECO FRIENDLY: Each factor of this baby crib mobile is made from eco friendly and low allergic felt, which is safe and nontoxic. 2.FOCUSING ATTENTION: This baby crib mobile can encourage your baby to concentrate and track for developing depth perception. 3.EYESIGHT GROWTH: This baby crib mobile will develop baby eyesight, and has a calming effect as baby settles into the crib or wakes from sleep. 4.NO WORRIES: This baby crib mobile can always entertain your baby, it won't stop because it moves without battery. 5.PERFECT GIFT: This baby crib mobile is an exquisite and perfect gift for your friends and family who have babies. specification:Item Type: Wooden Wind Chime Material: Beech Use: Wind Chimes Production PackageList:1 x Wood Block 4 x Wood Stick 2 x Q Shape Hook