WALTER WAL-X81VX-1555 - VISION 5X4 Tank HelmetFor the welder on a mission or for one who has served our country the "Tank" Vision Helmet with the ASIC enhanced, digital variable shade 5 14 (widest shade range) ADF with an Extreme viewing area of 12. 6 square inches; internal command center for 8 levels of shade and sensitivity, positive grind mode, dual alternating sensoring systems both magnetic and optical for pure performance and exacting results. For the more sophisticated welder looking for