FMS Adjustable Paracord Sunglass/Eyewear Lanyard (Dark Grey) 30 inches of 550 cord / Paracord Reusable, medical grade latex ends fit most sunglasses and eyeglasses Made in the USA by a Veteran Owned Business Made of premium quality materials and available in a variety of great colors Safe in a variety of environments; Paracord won't rot or mildew