The richly saturated colors are fully blendable with water and other sign pen brush colorstip can be diluted with water to get a full range of values.great for a variety of techniques, including feathering, cross-hatching, outlining, calligraphy and detailed line work.wear resistant, pressure sensitive, flexible tip.will not dry out if left uncapped and can be cleaned with a paper towelavailable in twelve (12) pastel colors.blue black, olive green, turquoise green, blue violet, pink purple, burgundy, light gray, pale brown, pale blue, grey blue, light green, pale pink.