CR-39 bifocal D-28 lens
1.Diamaeter: 50/55/60/65/70/75mm 2.Slim and thin. 3.High scratch resistance 4.UC, HC and HMC 5.Semi-fimished is availabl
1) Flat-top
2) Finished lens:a) Diameter: 28/70mmb) Power range:i) Spherical: 0.00 ~ ±3.00ii) Add: +1.00 ~ +3.00
3) Semi-finished lens:a) Diameter: 28/70mmb) Base: 200, 400, 600, 800c) Add: +100 ~ +300
envelops packing (for choice):
1)normal white envelops
2)your design with your logo,need extra charges
CR-39 bifocal D-28 lens