Features: - Great For TIG MIG MMA, Plasma Applications with Grinding Feature - Large Viewing Size 3.93"X3.23"With non auto-darkening Side View, 4 Premium Sensors - Better clarity, True color view - 1/1/1/2 Optical Clarity - Increased battery life - Superior comfort with the pivot style headgear. Specification: -Masks materials:PP -Light states:Shade DIN4 Main Window (5 Side Window) -Dark states:DIN5~9/9~13 free adjustment(Outside Variable) -View Area: 100 x 83mm/3.94 x 3.23 inch, Side view size: 4.3/1.96 x 4 (non auto-darkening) -Response time(bright to dark).