2 Chrome 10X Jewelers Loupes 21mm 20.5mm Lens Tools. This is a new set of 2 10X eye loupes. They are made of optical glass with a swing-away chrome plated case. The shape allows them to rest comfortably in the eye socket. These have become the standard style of loupe used in the watch making industry and are excellent for any application where magnification is needed. Each has a focal distance of 1" (25 mm). You receive: One round 10X loupe. One hexagonal 10X loupe. 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.