Our crib attachment is made of wood, will be a great addition to your mobile, environmentally friendly materials. Mobile stand is 100% organic, eco friendly. Total height of mobile holder is ~ 29,5 in. Width ~ 11,8 in. We can make to your sizes, just write us the right size. Clamps onto crib railing, up to 25 mm width. Maximum allowed weight for mobile is 0.4kg