Description: Designed for myopic people. When you are playing basketball, you often encounter the trouble of falling glasses, because your face is bathed in sweat. Or you bump into your partner accidentally, your glasses might fly out. Now this glasses strap can tightly fix glasses, not worry about these trouble any more. Features: Made of Diving material, resist wear, anti- collision, soft and comfortable, waterproof. Professional handmade seal, can fix glasses, your glasses will not slide off. Stretchy strap is suitable for heads of different sizes. Gift for your friends wear glasses.Suitable occasion: sport, climbing, hiking, riding, etc. Compatible with most glasses and sunglasses.Specifications: Material:Diving material Optional Color: Blue Size: Approx.42*2*2.5cm Suitable Glasses Temple Width: 4 - 8mm / 0.2 - 0.3inch Weight: 21g Quantity: 5Pcs/Set Type: Other Vision Care Gender: Unisex Function:Fix Glasses Package Includes: 5 x Glasses Strap Note: 1. Please allow 1~2 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.