Metal Man ABR7800SG 9-13 Variable Shade Industrial Large Window Auto-Darkening Welding Helmet, Bad Rod Graphics Big window 3.82 in. x 2.44 in. viewing area 9-13 variable shade control with auto darkening lens Grind mode 5-point adjustable head gear Removable/washable sweat band Solar powered, plus two replaceable batteries, with auto on/off