Specification AgeRangeDescription : Adult Brand : FEISEDY BulletPoint1 : Harmful blue light: It is commonly found in various light sources such as computers, mobile phones, televisions, LEDs, and fluorescent lamps. Long-term exposure will fatigue the eyes and cause vision loss. At the same time, blue light can also inhibit the secretion of melanin, interfere with the biological clock, and affect sleep. BulletPoint2 : The degree of presbyopia is related to age. If you do not wear reading glasses, it will aggravate reading difficulties, produce dizziness and many other symptoms, which will affect your life and work. With age, the original reading glasses are not enough, so they should be replaced in time. BulletPoint3 : FEISEDY Product Dimensions: Lens Width:54 mm/2.13 in, Lens Height:32 mm/1.26 in, Temple Length:135 mm/5.31 in, Frame total Length:150 mm/5.91 in, Nose Bridge:18 mm/0.71 in.Attention: Manual measure, there may be 1-2mm error. BulletPoint4 : Unique Design: The black rimless glasses are welded without screws, which avoids the loosening of the screws of traditional glasses, and are durable. The TR90 material will not be indented on your nose. It is not allergic and burden-free for long-term wear. BulletPoint5 : FEISEDY glasses bring you high quality fashion experience. Color : Black Department : unisex-adult ItemName : FEISEDY Rimless Reading Glasses Super Light TR90 Eye Frame Anti-Blue for Unisex Adult B4006 ItemPackageDimensions_Height : 15.6 centimeters ItemPackageDimensions_Length : 3.9 centimeters ItemPackageDimensions_Width : 7 centimeters ItemShape : Square ItemTypeKeyword : reading-glasses MagnificationStrength : 2.75 multiplier_x Manufacturer : FEISEDY Material : plastic PartNumber : PDZ-R070-5pcs-DEMI-275 Pattern : Solid PolarizationType : non-polarized ProductDescription : FEISEDY Reading Glasses - Classic Brand Design Square Thick Frames make you more stylish. Nice quality frame, Accurate presbyopia degree, Block blue light Lenses, Protect eye health Size : 1.50x SupplierDeclaredDgHzRegulation : not_applicable TargetGender : unisex