12 New Credit Card Size & Key Chain MagnifiersThis is a new set of 12 magnifiers. The powerful magnification may help reduce eye strain. These are convenient for your home, office and travel. These enlarge fine print in books, maps, newspapers, directories, legal documents, etc.You receive: 6 Credit card size 2X magnifiers that each measure approximately 3 5/8" x 2 3/8" (92 x 60 mm) with a 4" (102 mm) focal distance 6 Key chain 3X magnifiers that each measure approximately 2 15/16" x 1 1/2" (75 x 38 mm) with a 3" (76 mm) focal distance.