Aupek Universal Fit Rope Adjustable Sports Sunglass Holder Straps, Nylon Eyeglass Cord Eyewear Retainer, 5 Pack ADJUSTABLE: Adjustment toggle ensures straps not easily fall off and comfortable for all head sizes and shapes. Never lose your glasses again with this quality retainer. EXTRA LONG: Straps are approximately 28 inches long, Allowing sunglasses to be comfortably hung on your chest during leisure time. SECURE: Polyester sunglass straps with rubber connectors are suitable for regular glasses, 2.3 inches rubber grips, suitable for 0.4 inches thick and can be easily trimmed according to preference. (Straps may not fit thicker frames such as Ray-Ban Wayfarers.) CONVENIENT: No need to switch between frames when you have 5 pack at the same time. Good for sports, outdoor activities and daily use. Idea for fishing, biking, hiking, rock climbing, snow skiing, snowmobiling and etc.