Valve-Action markers deliver a measured supply of ink to the tip for consistent, permanent marks. The barrel resists ink dry-out even if the cap is left off. The GP-X marker is made for hard to mark surfaces. It makes a bold, opaque, permanent mark on almost any surface, including metal, wood, plastic and glass. Fast drying, permanent ink that wont chip. Weather and fade resistant. Vibrant colors YELLOW and WHITE show up on hard to mark surfaces like rusty pipes, construction materials, tools, equipment and more. GP-X markers can be used to outline stencils and stencil templates before marking, paint and cutting. For the right project, GP-X markers can be used to mark the blank stencil material
available in rolls and sheets.