The Sign Pen Brush is a flexible point water-based dye ink pen. Richly saturated colors are blendable with water and other Brush colors. Wear-resistant, pressure-sensitive, flexible tip. Great for feathering, cross hatching, outlining, calligraphy and detailed line work. Will not dry out if left uncapped. Marker Ink Type: Permanent; Marker Tip Type: Brush; Marker Tip Size (text): Fine; Marker Color(s): Assorted.