Revolutionize Reading with Clic Sunglasses Tired of dropping your reading glasses? Or losing them just when you need them? Do away with these annoyances by purchasing a pair of Clic Magnetic Reading Glasses. This one-of-a-kind front connection system allows you to easily wear and remove these glasses, but the patented neodymium magnets ensure they won't fall off your head. When you're not wearing them, they hang lightly about your neck from a durable nylon band, so you never forget where you left them. With a sliding extender they allow you to adjust them to almost any head size. Also, the included polycarbonate optical-quality lenses can be replaced with prescription lenses, giving you complete customizing ability. These readers are versatile, durable and convenient, and will fit anyone's needs.CliC Patented Front Connection TechnologyNylon Frames100% UVA and UVB ProtectionPolorized LensOptical QualityVirtually UnbreakableEasy On, Easy OffMicro-fiber drawstring pouch and cleaning cloth includedAdjustable Headband (one size fits most)Expandable version - 1/2 inch longer and widerRX-able at your local optometristExpandableFrame Width:148mm (5 3/4 in)Horizontal Lens:58mm (2 3/8 in)Vertical Lens:46mm (1 7/8 in)Nose Bridge:15mm (5/8 in)Temple/depth:190mm to 209mm (7 1/2 to 8 1/4 in)