188-9547, 3M, 3M Speedglas 9100 Flip-Up Welding Helmet, Auto-Darkening Lens, Adjustable Headband, 73 x 107mm Lens, Brand 3M, Type Welding Helmet, Series Speedglas 9100 3M Speedglas 9100 Flip-Up Welding Helmet, Auto-Darkening Lens, Adjustable Headband, 73 x 107mm Lens