· Ultra-light titanium alloy & plastic high quality professional optometry optical trial lensframe of precise workmanship, only 50g
· PD adjustable range is 54-70 mm (2.23-2.76 inch) with one touch PD adjustment for 2mm increments (54, 56, 58, 60, 62, 64, 66, 68, 70)
· Adjustable angle & length of side, and adjustable nose-pads, changeable cylinder axis twirls to meet different needs, easy fitting
· Up to 4 lens can be inserted on each side, holds up to 8 lenses
· Well packed in black cardboard box for easy carrying and storage