metal trial frame

1, made from metal frame, very strong and light.

2, designed to make a precise subjective measurement with the Test chart,improved to insert the lens,maximum 5 pcs

3, permits to adjust the PD, axis of the lens, length of the frame, position of the nose pad.

PD distance: 48-80mm(±0.8mm)
Cornea measuring plate: 2mm Interval
frame adjustable length: 35mm
Nose pad adjustable angles: 360°
Maximum available lenses: 10 pcs

metal trial frame