Description 1. 【PREMIUM SILICONE MATERIAL】Made from high-quality silicone, this eyewear strap is extremely soft, comfortable, and offers excellent elasticity. It's gentle on your skin and won't snag hair. It is designed to withstand daily wear and tear for long-lasting use. 2. :SECURE YOUR GLASSES: Our eyeglass retainer is engineered to keep a tight grip on your glasses, preventing them from slipping or falling off during sports, work, or daily activities. The adjustable flat head buckle ensures a personalized and snug fit. 3. 【WIDE COMPATIBILITY】Specifically designed for versatile use, the flexible ends can stretch to fit a variety of frame sizes and styles, including optical frames, reading glasses, and sunglasses. It is compatible with temple tips ranging from 4mm (0.16 inches) to 13mm (0.51 inches) in width. 4. 【OPTIMAL LENGTH FOR EVERYONE】This strap features a total length of approximately 72cm (28.35 inches), providing ample slack to comfortably wear your glasses around your neck when not in use. This makes it suitable for adults and children alike. 5. :GREAT VALUE 2-PACK: Get excellent value with this package listing, which includes two silicone eyewear straps. Have a spare on hand for different pairs of glasses, share with a friend, or keep one at home and one in your car. Package list 2pc Silicone Eyewear Straps