1.Index:1.56 2.Dia:60/65/70/72mm 3.material:Korea monomer 4. ... and services: - Optical Lens in all index 1.499, 1.56, 1.60, 1.61, 1.67, 1.74, 1.523 ... , Jiangsu, China Main featuresCR-39 RX optical lens1.Index:1.56,1.492.Dia:65/70/72mm3.Monomer:PPG4.Abbe Value ...