Uni-Paint oil based, valve-action paint marker marks opaque and glossy on light or dark surfaces. Use it on virtually any surface: glass, metal, wood, rubber, stone, plastic, paper, vinyl, leather, canvas and more. Comes in a variety of tip sizes. Use the Uni-Paint PX021 Oil Base 12 Color set for your next project:BLACK, RED, BLUE, GREEN, WHITE, YELLOW, ORANGE, VIOLET, LIGHT BLUE, SILVER, GOLD, PINK