Jackson Headgear & Faceshields are a comfortable, lightweight system for full face protection. By simply turning the ratchet knob in back of the Adjust-O-Lock™ headgear you can adjust the size while the unit is being worn. Unique snap system makes changing visors a quick and easy process. Eye protection must be worn with faceshields. Compatible with Shade 3.0 (3463) & Shade 5.0 (3465) visors for welding purposes. Meets ANSI standards.