1) Index: 1.56
2) Diameter: 50/55/60/65/70 mm
3) Coating: Uc, hc, hct, hmc, hmc EMI
4) Single vision, bifocal, progressive
5) Photochromic: Brown, gray

Cr-39 1.56 plastic MID-index lens
Cr-39 1.56 photochromic lens
Cr-39 1.56 flat-top bifocal lens
Cr-39 1.56 round-top bifocal lens
Cr-39 1.56 progressive multi-focal lens
Cr-39 1.56 photochromic progressive lens
Finished lens as well as semi-finished lens