Extra large 4.09 in x 2.13 in (104 mm x 54 mm) viewing area. Advanced electronics handle a variety of arc welding processes including extremely stable, low amp TIG. Filter only. Fits 3M™ Speedglas™ Helmets 9000 Series, FlexView Systems and ProTop Systems. Benefits Extra large 4.09 in x 2.13 in (104 mm x 54 mm) viewing area. Fits Speedglas welding helmets 9000 Series, FlexView Systems and ProTop Systems. Greater sensitivity: The 9002’s detectors have increased sensitivity to provide reliable switching for MIG, stick, and arc welding--even extremely stable arcs like those from TIG inverters at low amp settings. Greater comfort: The 9002 has a new delay function that lets you select how quickly the auto-darkening filter changes from dark-to-light. Adjust with gloves on: The 9002's membrane-covered control buttons let you change settings or turn on/off with your gloves on. The buttons are easier to adjust than analog knobs, and the membrane helps seal the filter from dirt and sweat. User-selectable dark shades 9, 10, 11, 12 and 13.