42 BY 52 EYE; TEMPLES 6.500 IN. W/PLASTIC COVERS; TEMPLE SECTION ALTERNATE MATERIAL PHOSPHOR BRONZE; NOSE PADS SHALL BE CLEARCOLORLESS CELLULOSE ACETATE OR ACETATE BUTYRATE; TEMPLE COVERS SHALL BE VINYL ACETATE OR VINYL OR BUTYRATE; PAD INSERT SHALL BE NICKEL RHODIUM PLATED; PAD WASHER SHALL BE MONEL 400 MATERIAL; TEMPLE SCREWS SHALL BE LEADED NICKEL SLVER; PAD ARM SHALL BE NICKEL SILVER OVERPLATED WITH DULL NICKEL AND CHROMIUM ELECTROPLATE