Specification AgeRangeDescription : Adult Brand : Haigfore BulletPoint1 : Progressive Multifocal glasses Suitable for reading and looking at distant objects without frequent picking BulletPoint2 : The upper part of the lens is zero magnification. When you walk were glasses, the effect of looking at the distance is the same as without glasses. BulletPoint3 : Anti-blue light protection vision: Blue light filter lens feature a special coating that restricts blue light from passing through the lenses BulletPoint4 : Product size, lens width: 53mm/2.09in, lens height: 35mm/1.38in, bridge: 17mm/0.67in, temple length: 142mm/5.59in, total width; 135mm/5.31in BulletPoint5 : With this reading glasses, you can read books, mobile phones, computers, and you can wear them while walking. Color : Gunmetal Department : mens ExternallyAssignedProductIdentifier : 9136957081104 ImportDesignation : Imported ItemName : progressive Multifocal Computer Reading Glasses Presbyopic Eyewear Blue Light Blocking Eyeglasses Anti Glare Eye Strain for Men (Gunmetal, 2.5) ItemPackageDimensions_Height : 17.399 centimeters ItemPackageDimensions_Length : 4.9022 centimeters ItemPackageDimensions_Width : 7.2898 centimeters ItemPackageQuantity : 1 ItemShape : Oval ItemTypeKeyword : reading-glasses ItemTypeName : Reading Glasses LensColorMap : Clear MagnificationStrength : 2.5 multiplier_x Manufacturer : HIPATU ModelName : Reading Glasses NumberOfItems : 1 OpticalPower : 2.5 PartNumber : HIPATU Pattern : Animal Print PolarizationType : Non Polarized ProductDescription : If you ever wear is progressive lenses, believe progressive lenses can bring you a better visual effect and comfort; if you are a first time with progressive lenses, please use the following ways, may it be your good helper. 1. first of all, try to look at objects far away from the top of the lens. You should feel very clear. Since there is no degree of diopter above, it is the same as without wearing glasses. 2. keep your head now, move your eyes downward, and see close objects from below the lens. Can you see clearly? 3. please stretch your arm and take a newspaper to the farthest. Read through the middle of the lens. If you can't see it, try turning your head up and down to find a position that you can see clearly. 4. in the observation on both sides of objects, if the sight to see objects from two lenses, you might find that clarity, reduced. It's normal, don't worry, you just have to rotate your head a little bit and try to look at the center of the lens and you'll feel very clear. 5.note that the initial use of progressive lenses requires head movement, but you will soon be able to adjust to it. 6. when wearing progressive lenses, please lower your head and look at the stairs through the upper and middle parts of the lens. Do not look at the stairs with the lower half of the lens. 7.like changing new glasses, may be have a few uncomfortable in the beginning. 8.If you have high astigmatism, it may not be suitable for wearing progressive lenses