Insight Digital Variable ADF Welding Helmet, SH9 to SH13, Stars & Scars, 3.93 in x 2.36 in no checkout tab lock headband Ratchet headband is strip tab lock headband Ratchet headband is strip proof and provides easy adjustment SwingStrap™ combines the benefits of both the ratchet and the 360° padded sweatband with the added ability to convert from forward to reverse wearing position without having to remove and reinstall the suspension Abrasion resistant and nonabrasive Highly effective against oils Variable shades to shield and protect eyes from radiant energy during weld Viewing area offers unobstructed views during all stages of welding process without lifting hood Sensitivity and delay adjustments for different tasks and durations Weld and grind modes Four independent sensors reduce blockage possibility