1.56Mi-index,photochromic/Brown/Grey.
Semi-finished photochromic lenses with full range of bases
Diameter: sph- 70mm for minus power -8/-2
                   sph+ 70mm for plus power +6/-2
                   sph+ 65mm for plus power +6/-2
Power range: -6.00/-2.00 for stock ,Rx range:cylinder up to -4.00
                         +6.00/-2.00 for stock ,Rx range: cylinder up to -4.00
New generation: Base color with faster color changing in sunshine.and faster color return in shadow.