cr 39 clear lenses 1) 1.499, 1.56,1.59,1.61,1.67 2) uc, hc,hmc 3) photochromic, progressive, bifocal cr 39 clear lenses Features:1) Index of 1.499, 1.56,1.59,1.61,1.672) Uncoated, hard coated, multi-coated3) photochromic, progressive, bifocal, pc, finished, semi-finished, tintable Package:1) Standard white envelope2) Your design with your own LOGO Certificate:1) CE2) FDA