(CE FDA) CR39 1.49 bifocal optical lens 1) Diameter of 65/70mm 2) Bifocal, round top and flat top 3) UC, HC, HCT, HMC EMI (CE FDA) CR39 1.49 bifocal optical lensFeatures:1) Diameter of 65/70mm2) Bifocal, round top and flat top3) UC, HC, HCT, HMC EMI Package: 1) Standard white envelope 2) Your design with your LOGO Certificate:1) CE2) FDA (CE FDA) CR39 1.49 bifocal optical lens