Eyeglasses Cords easily connect to reading or sunglasses, allowing them to hang around the neck so you are not searching for them when you need them again! The eyeglasses straps are available in several style assortments as shown in the image. The ASSTBLK has a braided nylon chain for those who do not like metal around their neck. There is a total of 120 straps per case to keep your store well-stocked.