Notes: Please allow a difference of 1 - 2 cm due to different tools and manual measurement. Tailless Design: Our glasses rope has a tailless design, with no extra tail that affects the overall firmness of the glasses strap. It can reliably fix your glasses to prevent them from being lost or falling. High-quality materials: These glasses straps are made of strong and high-quality materials. The ends of the glasses chain are made of extra soft silicone and the coated tear-resistant strap convinces with an incomparable smooth wearing comfort. They are soft and flexible, comfortable, simple to wear, sturdy and durable. Wearing safety: With a convenient length of approximately 70cm/27.6in, each with an inner diameter of a mere 5.5x2mm/0.22x0.