US SAFETY PENTAX F9800 Z87-2 Prescription-ready glasses Lens Size: 46mm (Bridge width 20mm, Temple length 145mm) Frame Color: Smoke (Clear Smoke) Lens Color: Clear (Due to the PC lens specification, it has a very faint purple tint) Of course, these are non-prescription glasses. The lenses are CR39 multi-coated plastic lenses, also used for prescription glasses (with a green reflection). Authentic product A commercially available hard case is included. Vintage, used item. There are scratches and dents on the frame. There are no noticeable scratches on the lenses. The hinge screws are a type without screw threads, so self-adjustment is not possible.