Package Dimensions:6.38 x 2.17 x 1.57 inches; 2.4 Ounces Department:Unisex Adult Date First Available:April 24, 2023 ASIN:B0C3CJ2BK2 Imported PC+TR90 frame Resin lens Non Polarized Lens width: 55 millimeters Bridge: 25 millimeters Arm: 150 millimeters 【Photochromic Multi-focus Reading glasses】Photochromic lens is a lens that becomes dark when exposed to a certain wavelength of light (usually ultraviolet light).When it is no longer illuminated by this light source, it will return to its original light transmittance and become clear. These are a great solution for those who hate constantly switching between reading glasses and sunglasses. 【Three Levels of Vision】Progressive multifocus glasses for all your need. Top part is half-power magnification for walking, shopping. The middle part is slightly reduced power magnification for working on computer, watching TV, etc. The bottom part of the lens is full-power magnification, then used for nearly distance reading. It means that you can wear the glasses anytime and anywhere. 【Resin Lenses and Spring Hignes】Far and near multifocus readers cover an extra large field of view.Black classic advanced PC frames that keep you professional and stylish while working or playing games. Flexible and durable sunglasses with readers' spring hinges and TR90 temples allow each pair of progressive photochromic glasses to fit the wearer's face perfectly. Soft nose pads keep the nose stress-free. You can use these multifocus reading glasses anywhere you want with ease. 【Blue Light Blocking Lenses And UV400 Protective Coating】Anti-blue light & UV400 lenses help you 100% protect against reflection & UVA/UVB rays.Wearing a pair of anti blue light glasses will protect your eyes from the harmful blue light. No dry eyes during long time working with electronic screens.Reduce symptoms of eyestrain during prolonged computer exposure. 【Package and After-Sale Service】1*Photochromic reading glasses/1*glasses case/1*soft glasses cloth. It will take some time to adapt after you wearing the multi-focus reading glasses.We suggest you at least try the glasses on for a week, then if there's anything need our assistance, please contact us.