PORTABLE:Mobile holder for crib is easy to install, no need for screw box, wider range of applications, DIY equipment is more convenient to carry,Mobile hanger for crib is lightweight and easy to carry, relatively small size, while the length is moderate, is the first choice of baby mobile arm 37 IN LONG STAND: The 37-inch long stand, no matter how short the fence of your crib, can be easily used. And Clip crib rail thickness up to 1.5 inch DOUBLE SCREW DESIGN: This new design double screw crib mobile arm can grip the crib more security. The petal shaped holder can be used on both sides which looks very cute and interesting MATERIAL: ABS material in white without pollution, high quality and safety to use. Our baby stand has passed various safety tests to ensure the safety of this nursery mobile arm DIY AND EASTY TO INATALL: The product contains 5 accessories, which need to be stitched together by yourself, which is very easy to operate, so you can move the crib for your baby Crib mobile arm Size: 37in x 9.8in/93.9cm x 25cm Material: ABS material in white without pollution Clip crib rail thickness up to 1.5 inch Double screw fixing for securely gripping the crib         Package included: 4 x Pcs Crib Bracket Set