Wide range of uses: the glass chain fits for prescription glasses, sunglasses, reading glasses, safety glasses, etc., unisex style eyeglass retainer is good for indoor and outdoor activities Good quality material: these eyeglass straps are made of natural cotton, comfortable and soft to wear, not easy to break, can last a long using life Adjustable glass holders: there is a rubber holder on both sides of the cords, they are adjustable, you can adjust its size according to your own needs Specifications: Cord material: cotton Cord length: approx. 70 cm/ 27.5 inches Glass holders material: silicone Color: 6 colors with decorative pattern Package includes: 6 x Eyeglass straps