Marks on metal, wood, plastic, glass, cardboard, textiles, etc. * Writes on any surface: rough or smooth; wet, oily or dry. Even marks under water * Marks are permanent; they won"t chip, peel, fade or rub-off. They withstand heat and weathering under adverse conditions * If desired, marks can be removed from non-porous surfaces with standard industrial solvents * Available in 4 fast-drying, lead-free colors