Oxy-Acetylene Welding goggles featuring 2" (50.8mm) x 4-1/4" (107.95mm) #5 shade hardened lens with clear glass cover lens. Meets ANSI Z87.1 safety standards. Conforms comfortably to the head and allows ample room to fit over regular eye glasses. DESIGNED FOR GAS WELDING ONLY. Provides 99.9% UV protection.