Nylon Spectacle Frame Holder, Sunglasses Eyewear Cord, Neck String Eyeglasses Accessories. COLOR: Multicolor (10 Dozen) will be sent in random color) DURABLE: This item is a practical glasses cords, which are made of durable nylon. ADJUSTABLE: It is suitable for myopia, reading glasses, sunglasses. With adjustable design which fits different head sizes. PORTABLE: The glasses rope can be used for outdoor sports, play ball, or out of travel. Easy to take on and take off. Spectacle Cord (Mix Color)