266 pcs Optical Trial Lens Set Kit Metal Rim Aluminum Case, with Adjustable Frame, with Snelle Eye Chart

Product Features of 266 pcs Trial Lens Set Metal rim: 36mm inner diameter, 38mm outer diameter Lens tray: Plastic tray with labels of silver background Outer case: Portable aluminum case with combination lock A fixed PD lens frame (random PD value) Specific Lens Sphere lens in pairs (+/-) (160 pcs)--diopters as follows: 0.12, 0.25, 0.50, 0.75, 1.00, 1.25, 1.50, 1.75, 2.00, 2.25, 2.50, 2.75, 3.00, 3.25, 3.50, 3.75, 4.00, 4.25, 4.50. 4.75, 5.00, 5.25, 5.50, 5.75, 6.00, 6.50, 7.00, 7.50, 8.00, 8.50, 9.00, 9.50, 10.00, 11.00, 12.00, 13.00, 14.00, 16.00, 18.00, 20.00. Cylinder lens in pairs (+/-) (80 pcs)--diopters as follows: 0.12, 0.25, 0.50, 0.75, 1.00, 1.25, 1.50, 1.75, 2.00, 2.25, 2.50, 2.75, 3.00, 3.25, 3.50, 3.75, 4.00, 4.50, 5.00, 6.00. Prism lenses(12 pcs): Pairs: 0.50, 1.00, 2.00, Singles: 3.00, 4.00, 5.00, 6.00, 7.00, 8.00. Auxiliary lenses (14 pcs): PL(2), CL(2), FL(2), MR, PH, SS, RF, GF, BL, Cross cylinder (0.25,0.50). Product Features of Snellen Eye Chart 1.Made from PVC material. 2.The chart's design follows the principle of one-minute visual angle. 3.Portable and user-friendly. 4.Its versatility allows for use in various settings. Product Features of Frame Material: Pure titanium, stainless steel, and plastic; weighs only 50.66g; Inner frame aperture:Φ33.5mm Compatible with 38mm outer diameter lenses; Lens slots: 4 slots on each side of the frame, with 3 in the front and 1 in the back; Degree of lens rotating around optical axis: 360°; Binocular PD Adjustable: 54-70mm, Min. increment: 2mm; Nose pad height adjustable: 0-4mm; Temple length adjustable( 98-128mm, 4 positions) and angle adjustable(3 positions) ; Astigmatism axis adjustable (Left and Right scale: 155°-0°-180°-25°, Min. increment: 5°);