Description Are you looking for professional but reasonably priced glasses retainers? Are you looking for sturdy, trustworthy tools that can do multiple tasks at the same time? If so, then you must take a look at our products, which can meet your needs. Features - Color: Black.- Material: Silicone.- Size:4.30X1.70X0.50cm/ 1.69X0.67X0.20in.-These products are made of high class silicone material, very safe and durable to use.- Glasses leg covers are specially designed to make myopia glasses, family wear glasses will not make glasses fall off.- These glasses leg covers are suitable for running, swimming, kicking a ball, gymnastics, outdoor sports.- This set of glasses leg retainers include lot of quantity can greatly meet your requirements.- The fashion and simple anti-skid glasses leg covers are great gifts for family and friends. Packing list: 12 x Pairs Non-slip Covers