Product Name: 1.56 Progressive Photochromic Lens! Ce Certificate Model NO.: 1.56 Lenses Color: Grey Brown Coating: HMC Type: Photochromic Lens Material: Resin Suitable for Face: All Gender: Unisex Age Group: Adults Function: for Astigmia, UV Protection, for Myopia Trademark: Boris Optical Transport Package: Cartons Specification: 70mm Origin: China HS Code: 90015099 Product Description Product Description1.56 progressive lens photo chromic (CE and ISO9001)Index 1.56 photochromic flat-top bifocalIndex:1.56Diameter: D28/70mmbase: 600B,400BAvailable: UC,HC,HMC,EMIHard coated, AR coatedPower range: -0.25~-2.00 ADD: +1.00~+3.00Index 1.56 photochromic semi-finishedAvailable color: grey, broen, green, blue, orange, purple, pinkDiameter: 70mmbase: 50B, 200B, 400B, 600B, 800BIndex 1.56 photochromic round-top/flat-top semi-finishedAvailable color: grey, brownDiameter: D28/70mmbase: 500BADD: +1.00~+3.00Index 1.56 photochromic round-top bifocalIndex: 1.56Diameter: D28/70mmbase: 600B,400BPower range: -0.25~-2.00 ADD: +1.00~+3.00