Made of silicone, this item doesn’t soak up sweat, get dirty, stink or fray. for walking, biking, hiking, climbing, snow skiing or just enjoying . Help provide with the and security they need to keep track of their glasses. Compact and light weight design provide a comfortable wearing feel. for your . Features - Color: Blue. - Material: Silicone. - length: 20cm / 7.9inch. - The thickness of eyeglasses’ leg end should be under 0.47inch. - Anti-slip Eyeglass strap and ear lock hook Children. - Reduces slippage and prevents loosing glasses from , comfortable and secure for eyewear. - Made of silicone, doesn’t soak up sweat, get dirty, stink or fray. - for walking, biking, hiking, climbing, snow skiing or just enjoying . - Compact and light weight design provide a comfortable wearing feel. Package list: 5 x Sets of Anti-slip Elastic Silicone Children's Eyewear Retainer Eyeglass Headband Sunglass Holder Strap Cord and Anti-slip Temple Tips Ear Hook with Clear Case (Blue)