Welding goggles, lift front featuring two (2) 50 mm round #5 shade hardened eye-pieces. Soft vinyl around each 50 mm eye-piece allows goggles to fit comfortably over regular eye glasses. Meets ANSI Z87.1 Safety Standards. DESIGNED FOR GAS WELDING ONLY. Forney 56900 (shaded) and 56901 (clear) replacement 50mm eye-pieces are available separately. Provides 99.9% UV protection.