Specification AgeRangeDescription : Adult Brand : LianSan BulletPoint1 : 【TRIFOCAL READERS】The lenses are divided into three parts, the bottom part has the strength of your chosen for close reading activities,and the strength of the top area is half of the reading part,allowing you to see within 3-5 ft.The center serves as the transition area for the strength,you can use computer or other device through this part.If this is your first time using progressive multifocus reading glasses, it may take a week to get used to them. Tips,the strength of the top is not 0. BulletPoint2 : 【DESIGN FOR YOU NEEDS】Glasses is made of durable metal with high-strength spring hinges, suitable for a wide range of face shapes.These reading glasses are designed to meet the needs of individuals who require near and middle distance reading. Ideal for everyday use, such as playing computer, reading books, using smartphones, and more. BulletPoint3 : 【DIMENSION】Lens Width:53mm(2.08in) Lens Height:36mm(1.41in) Frame Width:134mm(5.27in) Arm Length:138mm(5.43in) Bridge:20mm(0.78in) BulletPoint4 : 【QUALITY BY LIANSAN】With LianSan's commitment to quality, these reading glasses deliver durability and comfort, enhancing your reading comfort and reducing eye strain. BulletPoint5 : 【365-DAY WARRANTY】Rest assured, if you experience any issues after receiving the glasses, you can reach out to us at any time. We provide 365 days of after-sales service, as well as an unconditional refund. Color : Black&grey Multifocal Department : Unisex Adult ImportDesignation : Imported ItemName : LianSan 2Pack Progressive Multifocus Reading Glasses - for Men Women,No-Line Metal Frame Trifocal Blue Light Computer Readers(Black&Grey Multifocal,3.0x) ItemPackageDimensions_Height : 15.2908 centimeters ItemPackageDimensions_Length : 3.9116 centimeters ItemPackageDimensions_Width : 6.2992 centimeters ItemShape : Rectangular ItemTypeKeyword : reading-glasses LensColorMap : Clear MagnificationStrength : 3 multiplier_x Manufacturer : LianSan ModelNumber : LS8003P-2P300 PartNumber : LS8003P-2P300 PolarizationType : Non Polarized ProductDescription : LS8003P-2P300 Size : Medium Style : Ls8003p-2p300 SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable TargetGender : unisex