As per the variegated demands of our customers, we are offering best and finest quality assortment of Trial Lens Set. These offered 25 mm Optics provide a 33 degree field of view,Lenses upto +/- 6 D are of 25 mm Diameter optics and then 22 mm upto 20 DioptersCylinders with or without Handle.Beautifully crafted Wood Tray with angluated slots for better view.Color Coded Rims – Red for Minus and Black for Plus.