Propionate visor provides distortion-free optics along with chemical and impact resistance - Visor is compatible with Fiber-Metal hard hats with Quick-Lok™ blocks - Protects Eyes and Face From Flying Debris, Particles, Chemical Splash Visor Material / Propionate Visor Color / Shade 5 IR Visor Thickness / 0.06 in Visor Width / 16 1/2 in Visor Height / 8 in Standards / ANSI Z87+ High Impact When Used With Fiber Metal Headgear Includes / Faceshield window For Use With Series / F-400, F-500, FH-66, FM-70, FM-71