TruGuard, Professional, Ratchet Adjustable Face Shield, Clear Polycarbonate Face Shield Protects From Flying Particles & Splashes, 4 Point Easy Adjustment Ratchet Suspension, Twist Knob To Adjust, Pivoting Head Gear Allows User To Lift Face Shield While Wearing, Provides 99% Protection From Harmful UV Rays, Meets ANSI Z87 Plus Standard.