Specification; VB-10; Visor Bracket Mounts on Safety Caps, use with ELVEX,Slot Adaptors or ELVEX Cap Mount Ear Muff s. Accepts Face shield or Visors. Now with wide brim. Nylon reinforced glass fill material Use with standard brim safety caps Accepts face shields, screens and visors May be used with Elvex® QuickSnap Cap Mount Ear Muffs or slot adaptor SA-93. FS 18L; Color: Clear Material: Molded Lexan Polycarbonate Thickness: .07 inches Dimensions: 10” x 18.5” x.07” Heat Tolerance: up to 265 degrees UV Protection: 99.9% Standard: ANSI Z87.1-2003. ANSI standard requires users to wear safety glasses under face shields.