Magnum Safety Glasses - Bifocal Smoke Lens (+1.50) 068+1.50SDMagnum Safety Glasses Bifocal Smoke Lens (+1. 50) 068+1. 50SD The Magnum reading glasses are set in clear or smoke polycarbonate safety lens. This same polycarbonate material is used in many of our AS NZS certified safety glasses. The Magnum reading glasses are available in +1. 50, +2. 00, +2. 50 and +3. 00 magnifications. Lens Tint Smoke Lens Type Bifocal Lens Magnification +1. 50 Lens Material Polycarbonate Arms Type Standard Frame Design Single