Jackson Safety welding safety plate lens kit contains top-quality polycarbonate lenses for welding helmets. Kit includes five front plates and two rear safety plates for the Jackson Safety HSL 100 welding helmet with NEXGEN 3-in-1 digital auto darkening filter. Compatible ADF helmets include welders' favorite features, with all digital controls. To prevent surface damage to welding filter plates and auto-darkening lenses, clear safety plates should always be inserted in front for protection.