The featured item is a single vision spheric photochromic lens with 1.56 reflective index. It also comes in two different sizes, with diameters of 65 and 70mm. The lens is available in two colours.
- Abble value: 38
- Specific gravity: 1.28
- Reflective index: 1.56
- Colour: grey/ brown
- Diameters: 65/70mm