The Protecto M86CLU Shield Visor from Willson is made of distortion-free .060"thick molded propionate. Injection molding this visor gives it the added benefit of Prism Perfect optical properties, a built-in reinforced edge, and thicker impact protection than acetate. The universal hole pattern allows this shield to fit a wide variety of headgear in addition to the Pyramex HGB Headgear (ordered separately). As with any face shield, you must wear safety glasses when using a face shield since they are not rated as primary eye protection. Sold 20 per case.