Pack of 6 Sports Adjustable Sunglass Keeper Eyeglass Safety Strap Eyewear Retainers Holder Head Strap Neck Cord String Package included 6 pcs eyeglass strap (2 blue,2 red,2 black) With high elastic silicone, not easy to fall offand easy to use With Clasp to adjust the length Length:11.5 inch Good for sunglasses eyeglasses outdoor or indoor sports, travel etc.