Specification:
1. Made of titanium alloy, exquisite and light.
2. PD meter adjustable: 54~70mm
3. Degree that front lens rotates around optic axis inside lens frame: 360°.
4. Temple adjustment: 135~165mm.
5. Left dividing disc: 20° ~ 180° ~ 0°~160°
6. Right dividing disc: 20° ~ 180° ~ 0°~160°
7. Axial graduation increases along the lens frame axis counter clockwise, and the graduated distance is 5°.
8. Inner diameter of lens frame: 33.5mm
9. Number of lens which can be inserted into left or right lens frame simultaneously: 4 pieces
10. Maximum distance between left and right temple: 225mm
11. Range of nose rest adjustment: vertical adjustment range: 0 ~3mm
12. Weight: 50g
