The Hi-Mark Tactile Pen is a tactile marker designed for tactile marking of household items by individuals who are blind or have low vision. It is a tube of fluorescent liquid paste that becomes hard plastic when it dries. Drying time is approximately two hours. It can be applied directly to paper, plastic, wood, glass, cloth or metal. It will not stick to flexible plastic. It can be used to create tactile maps or to mark control settings on stoves, microwave ovens, toaster ovens, washers, dryers, etc. COLOR: fluorescent orange, white, or black.