Uncoated, Diameter Available:55/60/65/70mm 1.50 UC lens(eyeglass lens,resin lens,ophthalmic lens):1,Refractive Index:1.499Monomer:PPG JapanAbbe Value:58Specific Gravity:1.325,Uncoated6,Diameter Avaliable:55/60/65/70 1.499 UC lens(eyeglass lens,resin lens,ophthalmic lens,CR39 Lens)