3 Folding 7X Magnifier Key Chain Great For Enlarging Fine Print in Books, Maps, Newspapers, Directories & Legal Documents. This is a new set of 3 folding 7X magnifier key chains. Great for enlarging fine print in books, maps, newspapers, directories, legal documents, etc. The powerful magnification may help reduce eye strain. These convenient for your home, office and travel. Each has a 1 1/2" (38 mm) focal distance. Each measures approximately 3 5/8" x 1 7/16" (92 x 37 mm) open and approximately 2 1/16" x 1 7/16" (52 x 37 mm) closed 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.