Posca Acrylic Paint Marker - Mark in vivid color on practically any surface. The opaque, water-based ink in Posca markers dries to a matte finish on both porous and non-porous surfaces. Odorless, fade-proof, and bleed-proof, these markers are great for posters, signs, sketching, lettering, graphs, and charts. Use them on paper, mat board, wood, Styrofoam, metal, plastic, vinyl, glass, and more.