Sign Pen Brush Tip, Assorted Ink Colors, 12-Pack in Plastic BoxThe Sign Pen Brush is a flexible point water based dye ink pen. The richly saturated colors are fully blendable with water and other Sign Pen Brush colors. Wear resistant, pressure sensitive and flexible tip can be diluted with water to get a full range of values. Great for feathering, cross hatching, outlining, calligraphy and detailed line work. It will not dry out during use if left uncapped and can be cleaned with a paper towel. Recommended age