... .56 photogrey lens 1.index :1.56 2.material:glass 3.dia:72mm/65mm 4.HC HMC HMC+EMI 1) ... , 60mm, 65mm, 70mm,75mm4) Uncoated lens, hard coated and Multi-coating,HCT,Super hard5) progressive,flat top/round top bifocal, Tinted ... Quality guarantee:1 year quality guarantee.Multi coating(AR)lens is produced by Korea coating machines,envelops packing(For choice):1) standard ...