8 Pairs Silicone Anti-Slip Eyeglass Ear Grips Hook Soft Eyeglass Retainer Comfortable Elastic Eyeglasses Temple Tips Sleeve Retainer Holder (4 Pairs Black+4 Pairs Clear) ?DURABLE MATERIAL: These silicone grips made of soft and comfortable silicone, which keeps your glasses in good condition,non-slip and easy to use. ?APPLICABLE SIZE: Fits most kids and adult size glasses or sunglasses. ?SOFTNESS ELASTICITY: With higher flexibility,the eyeglass retainers will always bounce back after squeezed. ?ANTI-SLIP DESIGN: The special ear grip hooks are designed to keep a tight grip on your glasses,which makes you can do anything freely. ?IDEAL FOR: Perfect for sport, hiking, fishing and other outdoor activities, or in the daily life of using glasses.