The ProMarker Black Set of 2 from Winsor & Newton contains 2 black markers that make an excellent introduction to colouring with alcohol based pens. Each marker has a dual tip with one being a brush nib for full precision lines, and the other a chisel nib to use for varied line widths. Promarkers use high quality alcohol based inks that are formulated using fine professional quality dyes. They give bold tonal ranges with flawless, streak-free coverage. Each ProMarker colour can be layered or blended on a variety of surfaces including paper, acetate, glass, wood or plastic. You don\'t even need to worry about smudges and blotching as they dry very quickly and are build to resist fading over time. - Brand: Winsor & Newton - Set of 2 Black ProMarkers - Twin-tipped markers with a brush and chisel nib - Can be layered and blended