3 2X Bausch & Lomb Sight Savers Magna-Thin Credit Card Magnifiers For Reading Newspapers, Books & Legal Documents. This is a new set of three 2X Bausch & Lomb magna-thin magnifiers. They are compact and convenient. The credit card size magnifiers fit easily into a purse or wallet. All include a protective case. These are great to give to your best customers with your business card allowing them to look at their jewelry or GIA certificate. Also great for reading menus, directories and much more. Each measures approximately 3 5/8" x 2 3/8" (92 x 60 mm).