Techniweld USA AGOLYMPUS 2.0 Auto Darkening Weld Helmet; Clear Blue View Technology; Viewing Field: 3.94" x 1.97" (100mm x 50mm); ADF Size: 4.33” x 3.54” x 0.197" (90mm x 110mm); 4 Independent Arc Sensors; 3 Modes Included: Cut/Grind Mode, Torch/Plasma Mode, and Welding Mode; Delay Control: Inside and Stepless, 0.15-0.80s; Optical Rating: 1/1/1/2, Shade: Clear at Shade 3, Darkest at Shades 5-9 / 9-13; Made of high impact Nylon