Trial frame TFK-20 52-60

The TFK-20 52-60 5pc Set is designed for pediatrics use. Suitable for eyesight examinations in optical shops, hospital, and anywhere vision tests are done. The TFK-20 52-60 5pc Set is easy to use, lightweight, and best of all, economical. Features of TFK-20 52-60 5pc Set: ▪ PV Adjustable range (5 specifications): 52mm, 54mm, 56mm, 58mm, 60mm. ▪ Axial calibration on each diasc: 165º ~ 0º ~ 180º ~ 25º axis graduation line runs counter clockwise along axis graduation line of lens frame, with interval of graduation line being 5º. ▪ Lens rotates around optic axis inside lens frame: 360º. ▪ Range of left or right lens frame legs, length adjustment: 90m ~ 99mm, length of specification of trial frame increase 1mm in turn. Specifications PD Adjustable Range - 52mm, 54mm, 56mm, 58mm, 60mm Axial Calibration on each disc - 165º ~ 0º ~ 180º ~ 25º axis graduation line runs counter clockwise along axis graduation line of lens frame, with interval of graduation line being 5º Lens rotates around optic axis inside lens frame - 360º Range of left or right lens frame legs, length adjustment - 90m ~ 99mm, length of specification of trial frame increase 1mm in turn