1) Optical lens: CR-39 2) Nd=1.499,1.56,1.61,1.67 3) Dia: 55--70mm 4) Abbe value: 58 5) Specific gravity: 1.32

1) Product Name:Optical lens

2) High scratch resistance

3) New design, slim and thin

4) UC,HC, HMC coating available

5) Tintable to various fashionable colors

6) Products are passed the high test of CE and ISO

7) Semi-finished or finished are available

8) Package: white envelopes or as customers' requirement

1.56 nk-55 tintable power resin lenses