Specifications: Color: Red, Blue, Black, Dark Blue, Green, Gray Material: Polyester Length: Approx. 42*2.5 cm (16.53*0.98 in) Package Include: 6 x Glasses Strap High Quality: 1. Glasses straps are made from durable polyester material. 2. The tough polyester resists fraying and breaking, ensuring a long-lasting product. 3. The soft, flexible material is comfortable to wear and wont irritate your face or ears. Easy to Use: 1. Each eyeglass chain has an opening at the end. 2. Insert the glasses into the opening and push them upwards. 3. This glasses cord holds firmly onto the ear wires of your glasses, preventing them from falling off.