TruePower 09-1725 Solar Auto Darkening MIG Tig Skull Welding Helmet Welder Mask Carbon Fiber Welding Helmet, Viewing Area: 3-7/8" x 1-11/16" Square Super Fast Darkening Speed: 1/25,000 Second Meets ANSI Safety Rating: ANSI Z87.1-2003 Light Shade: Shade 4 ,Dark Shade: Adjustable 9 to 13 Warranty: 1 Year Carbon Fiber Welding Helmet, Viewing Area: 3-7/8" x 1-11/16" Square Super Fast Darkening Speed: 1/25,000 Second Meets ANSI Safety Rating: ANSI Z87.1-2003 Light Shade: Shade 4 ,Dark Shade: Adjustable 9 to 13