5 Black Nylon Loupe Cords Great For Jewelers, ID Cards & Keys. This is a new set of 5 black nylon loupe cords. Great for jewelers, ID cards, keys, etc. Each measures approximately 38" (96.5 cm) long We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.