Features and Benefits:Polycarbonate window ideal for grinding, chipping, material cutting, and chemical splash;Universal pin pattern window mount system can be used with over 45 Jackson windows;Ratcheting style headgear is built for all-day use;Headgear is equipped with an industrial style spark guard;Large adjuster knob can easily be used with gloves. Meets ANSI Z87.1+;ANTHEM+ FACE SHIELD