PITT Artist Pens combine all the advantages of artis's inks with the benefits of a modern disposable pen. These sets feature a variety of pens specifically selected for hand lettering but they are also ideal for sketches, drawings, layouts, fashion design and illustration. The pens offer odorless, permanent, acid-free, PH neutral, waterproof and lightfast inks. Each set includes brush nib pens that applly smooth strokes of ink for a painterly style. The durable brush nib allows for brush strokes from broad to narrow widths with an even application of color ideal for hand lettering and illustration.