ENHANCED ANTI-SLIP CLASP LOOP - Our Fashionable eyeglasses string holder will keep your glasses lanyard in place everywhere you go. The upgraded metal clip of this eyeglasses strap allows you to hold your glasses in loops strongly.^ STRONG CORDS - Straps are 13" (33cm) long. This glasses necklace provides strength to keep your eyeglass holders around neck seamlessly. Ideal for fishing, biking, hiking, rock climbing, snow skiing or just enjoying the great outdoors. Also ideal for normal indoor every day use.^ PREMIUM ECO LEATHER & PURE COTTON - Made of top quality PU leather, this eyeglasses holder strap will provide stylish function unlike other glasses cord that will leave you old-looking. Great necklace for both men and women.^ FIT FOR MOST GLASSES - From small to large frames, these eyeglass chains and cords for men and women strap provide universal compatibility fitting optical frames, reading glasses & sunglasses. Keep your glasses secure around your neck, allow sunglasses to be comfortably hung on your chest, or rest on top of your head.^ 4 COLORS INCLUDED EASILY MATHC WITH YOUR OUTFIT - Package includes 4 colors of holder straps (black, beige, red, and brown). Various colors will easily match with your clothes.^