Dial Adjustable Glasses Variable Focus For Reading Distance Vision Eyeglasses US 👓【Adjustable Lens Strength】Optical reading glasses feature a fully-adjustable lens strength. This eliminates the need to carry several pairs of glasses to meet your near and far-sighted needs. 👓【Large Diopter Range】Compared with many similar products, they offer a very limited range of lens strength. We completely blow everyone out of the water with an impressive range of -6 to + 3 diopters. This makes our glasses great for a large group of users of various ages. 👓【Near Or Farsightedness】 Optic lenses designed for nearsighted and myopic as well as farsightedness. These adjustable eye glasses are great for men & women of various ages and prescriptions. 👓【Variable Focus】 Variable focuses for instant 20/20 vision & clarity. Flexible frames, comfortable nose pads with impact scratch resistant polycarbonate lenses. 👓【Prevent Eye Strain】Our Bifocals help to prevent eye strain. Customizable power-adjust reading glasses also improve vision with Alvarez dual lens technology for near intermediate & far distances. Specifications: Color: Black Material: ABS + Impact Scratch Resistant Polycarbonate LensesFeatures: Self-Adjusting Lens Adaptive GlassesBridge Size: 0.7” (18mm)Total Width: 5.5” (140mm)Lens Width: 1.9” (48mm)Height: 1.3” (33mm)Arm Length: 5.2” (133mm)Comes with: 1 x Pair of Self-Adjusting Lens Adaptive Glasses, 1 x Microfiber Cleaning Cloth, 1 x Case, 1 x Eye Chart For Easy Adjusting, 1 x Instruction ManualLens Strength Range: -6.00 to +3.00 Diopter Range Features & Tips Usage method Hyperopia:1. Please cover one eye with your hand, and look at the objects 6 meters away. At the same time, turn the adjusting button with the other hand forward or backward until you can see the object clearly.2. Cover the other eye and repeat3. After the left and right eyes are adjusted respectively, both hands will fine tune the left and right rotary buttons until they are the most suitable pupil distance Myopia: focus on an object and set aside a suitable distance for readingRepeat the above steps Adjustable Optical reading glasses feature a fully-adjustable lens strength. This eliminates the need to carry several pairs of glasses to meet your near and far-sighted needs. Variable FocusVariable focuses for instant 20/20 vision & clarity. Flexible frames, comfortable nose pads with impact scratch resistant polycarbonate lenses. Large Diopter RangeCompared with many similar products, they offer a very limited range of lens strength. We completely blow everyone out of the water with an impressive range of -6 to + 3 diopters. This makes our glasses great for a large group of users of various ages. Prevent Eye StrainOur Bifocals help to prevent eye strain. Customizable power-adjust reading glasses also improve vision with Alvarez dual lens technology for near intermediate & far distances. Package includes: 1 x Dial Adjustable Glasses Variable Focus For Reading Distance Vision Eyeglasses US1 x Microfiber Cloth1 x Instruction Manual1 x Eyeglasses Case1 x Eye Chart For Easy AdjustmentShipping Information: Your item Ships Same Day to 1 Business Day from our California Location.