Features:
1. Widely used in eyewear shops, schools, eyecare clinic and hospital ophthalmology department
2. Easy adjusting PD, temple, nose pads and axis.
3. Available for several trial lenses to be inserted at each side.
4. Metal materials, simple structure and light weight
Parameters:
1. PD range: 48~80mm
2. Left and right PD: 27~35mm
3. Minimum calibration: 1mm