【Portable design】：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 mobile arm！ 【Adjustable angle】:The Baby Crib Mobile holder is 23 inches long. Baby mobile claw opening width is 3.34 inches. the claw can be adjusted at any angle up to 30° while the mobile arm is fixed on the crib,which is suitable for most of the cribs, strollers and changing tables. 【Easy to install】：Splice each pieces [very easy to operate], you'll get one brand-new stable baby crib mobile with holder arm bracket and wind-up musical box, DIY devices are more convenient to carry,Dolls are not included . 【Help fall asleep】：Wind-up Music Box with light music help your baby easier fall asleep. Fits traditional and convertible cribs.No need screws and more convenient to carry. 【Safety】:The crib mobile stand of our brand RUGVOMEM have undergone safety tests to ensure the safety of the crib mobile arms and are made of white, non-polluting ABS material for safe use! 【Brand Integrity】We are dedicated to the research and design of baby supports.If you have any question about Our Baby Crib Mobile holder, please contact us directly by email.Thanks. Best wish for you! Feature: Light music can help your baby fall asleep more easily. Music can even help enhance the music of premature babies. Music plays a vital role in connecting the baby's brain for learning. Listening to music can help you teach your baby about patterns and sequences, and about rhythms and beats. Information about intonation and intonation is used for problem solving and reasoning. Early musical exposure can help improve key listening skills, language and literacy skills, creativity and coordination skills