Pyramex® S4110R20 Bi-Focal Lens Lightweight Reader Protective Glasses, +2 Diopter, Clear Lens, Polycarbonate Frame, Yes UV Protection, ANSI Z87.1, CE EN166 CSA Z94.3-07 Pyramex® S4110R20 Bi-Focal Lens Lightweight Reader Protective Glasses, +2 Diopter, Clear Lens, Polycarbonate Frame, Yes UV Protection, ANSI Z87.1, CE EN166 CSA Z94.3-07