The ThinOptics Secure Fit Armless Ultralight Reading Glasses come with a convenient metal universal pod that easily attaches to almost any hard or flat surface including a phone or laptop. It can also be safely stowed in a purse or bag. In fact, there is virtually no limit to the ways you can carry this pod case! This versatile vision solution is convenient, portable, lightweight and durable. 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! They feature optical-grade polycarbonate lenses, an ultra-flexible titanium alloy bridge and Flex-Fit Technology that delivers a universally comfortable yet stable grip on any nose. Low Range +1.00 fits +0.75 to +1.25. Low-Mid Range +1.50 fits +1.25 to +1.75. Mid Range +2.00 fits +1.75 to +2.25. High Range +2.50 fits +2.25 to +2.75.