Mechanical and refillable marking pencil. Will mark on any surface, and wipe off any smooth, non-porous surface with a dry cloth. Great for marking metal, wood, glass, cellophane, ceramics, stone, tile, freezer bags, etc. Will write upside down and under water. Colors include: black (2), red (2), white (2), blue (2), yellow (1), orange (1), green (1) and brown (1).