This glasses strap is designed to hold onto glasses or sunglasses tightly when they fall off, secure them around your neck. With the eyeglasses retainer, you will never lose your glasses or sunglasses! Made of nylon material, it has strong toughness and is not easily deformed, nice for long time use. Features - Color: Black. - Material: Nylon. - Size: 32x0.4x0.4cm. - Straps will not easily fall down and you don’t worry about breaking your glasses. - design, which has floating function to protect your eyeglass in water when you diving or swimming. - Keeps your glasses secure around your neck,chest or head to prevent falling in daily life. - Perfect for swimming ,diving,surfers, kayaking or other water sports. - Effectively prevent the glasses from falling off, and the eyeglasses are equipped with a sliding buckle. You can adjust the length of the rope as you like. - Warm Tip: Dear buyer, Due to lighting effect,monitor’s brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! Thank you! Package list: 2 x eyeglasses cord