Details:
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