The BIC Intensity PRO Permanent Marker is a truly permanent marker specially designed to leave jet black ink on demanding surfaces. Wet and oily surfaces, wood, glass, plastic and metal are no match for Intensity Metal Pro! From wood working projects to PVC pipes and more, this pocket-style black marker withstands temperatures –22°F up to +300°F, leaving a mark where you need it. Perfect for contractors, carpenters, plumbers, industrial workers, and anyone working on different textures or in extreme conditions.