NEW Skull Solar auto darkening MMA TIG MIG ARC welding mask welder cap helmets face mask (RED) 1.92*42MM big view eara welding mask 2.DIN9-DIN13 Solar auto darkening welding mask 3.Sensivity and delay time can be adjust 4.shade eara,sensivity,delay time stepless adjust 5.TIG MMA MIG MAG ARC welding mask