Generic Sport Unisex Nylon Elastic Strap Cord Lanyard Holder Chain for Sunglass/Eyeglass/Spectacles (Black) Features: Perfect to keep your sunglasses in place everywhere you go Length adjustable from 42-56cm with plastic sliding buckle while doing sports Great for reading glasses, sunglasses etc Excellent for any occasion such as cycling, riding, jogging, fishing, exercise etc Suitable for eyeglasses with 12mm width leg Material: nylon Color: Black Package Includes: 1 x Eyeglass chain cord