Trial Lens Set 104 pcs Grade A

Product Description This 104 pcs trial lens set is a small portable ophthalmology apparatus used in the home or glasses shops to examine a person's refractive error including hyperopia, myopia, presbyopia, and astigmatism. This product ships from: United States / China. For a detailed comparison of Grade A and Non-Grade A lenses, check out this blog: Grade A vs. Non-Grade A Lenses: What’s the Difference? Packing List： Portable Aluminum Case X 1 High Quality Lens X 104 pcs (Made of glass, 36 mm inner diameter and 38 mm outer diameter with metal rim) Trial frame X 1 (A free gift trial frame as a backup, no specific PD value) User Manual X 1 Lens cloth X 1 Product Details 104 Trial lens set including: Spheres: 18 pairs each of concave and convex Cylinders: 6 pairs each of concave and convex Prisms: 2 pieces Accessories: 6 pieces (BL, RF, PH, FL, SS, Cross cylinder 1 piece: 0.25 or 0.5)   Spherical lens(72 pcs): Spherical lens includes concave lens (-) and convex lens (+). Th