494700CSA Clear Polycarbonate Face Shield - MCR Safety's headgear and faceshields offer superior protection from liquid splashes and flying debris that would otherwise be damaging to the face. An assortment of brackets and faceshield sizes and materials make it a good bet that you can find an option just right for you. The 494700CSA is a flat polycarbonate replacement faceshield for our Double Matrix headgear. It measures 7 x 16.75 inches and is .040 in thickness.