Weldclass PROMAX-500 Blacj Stealth Welding Helmet. Super size viewing area & more value than you can poke a MIG, TIG or Stick at! PROMAX 500 stand-out features include; Massive 98x87mm Viewing area, 4 senors for reliable switching, Dual Shade 5-8/9-13, Sensitivity & Delay Adjustments, Grind-Mode switch, Replaceable Battery, Magnification Lens Holder & more. Comfortable, lightweight & superior optics.