CR39 RESIN LENS Reflective index:1.50 ABBE:58 Coat:UC,HC,HMC Diameter: 55,60, 65, 70 AT monomer from Italy, ce certification CR39 RESIN LENSReflective index: 1.50ABBE: 58Coating: UC, HC, HMCDiameter: 55, 60, 65, 70AT Monomer from Italy can guarantee within 2 years can not become yellowCE certification CR39 1.499 LENS