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 high quality neoprene 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. Perfected gift for your friends wear glasses. There are 5 different color, depending on which one you like. Suitable occasion: sport, climbing, hiking, riding, etc. Compatible with most glasses and sunglasses. Specifications: Material: Neoprene Optional Color: Blue, Red, Dark Blue, Green, Gray Size: Approx. 420 * 20mm / 16.5 * 0.8inch Suitable Glasses Temple Width: 4 - 8mm / 0.2 - 0.3inch Weight: 30g Quantity: 5Pcs/Set Type: Other Vision Care Gender: Unisex Function:Fix Glasses Package Includes: 5 x Glasses Strap 1Made of high quality neoprene material, resist wear, anti- collision, soft and comfortable, waterproof 2Professional handmade seal, can fix glasses, your glasses will not slide off 3Stretchy strap is suitable for heads of different sizes 4Perfected gift for your friends wear glasses 5There are 5 different color, depending on which one you like