Polycarbonate Clear Face Shield - MCR Safety's headgear and face shields offer superior protection from liquid splashes and flying debris that would otherwise be damaging to the face. An assortment of brackets and face shield sizes and materials make it a good bet that you can find an option just right for you. The 131640 is a clear polycarbonate visor that measures 3 x 16 x .040 inches thick. Find the best face shields at MCR Safety!