The ThinOptics Secure Fit Armless Ultralight Reading Glasses come with a convenient FlashCard Case. This case is as small as a credit card and as slim as two nickels! Your readers fit elegantly inside the metal case, adding a portable and convenient way of carrying your glasses anywhere. Choose from a variety of lens strengths and frame colors to fit your exact needs and style preference. ThinOptics are the thinnest, lightest and most durable reading glasses in the world!