Function :The eyeglass chain end is a good linker between the glasses and the chain. You can adjust the metal coil on the ends to fit your glasses leg, enough adjustment range is suitable for most glasses. Quality material: The adjustable glasses chain ends are made of premium material,which is flexible and easy to use Wide usage:Ideal for any handicrafts objects that require end loops and stationary hoops, it is essential accessories for jewelry DIY enjoyment like sunglasses chain, sports eyeglasses strap, glasses necklace and so on Easy to Use:Just insert eye glass frame into the flexible Loops which can keep hearing aid attached to eye glass frame all the time Elegant & Discreet Design: Boasts a minimalist, polished finish that looks professional and stylish. The small, sleek design complements any chain without bulkiness