Pentel Color Brush Purple Marker #150 Color brush markers have synthetic nylon bristles that do not deform with use. This tip will allow you to control the thickness of the line. Quick-drying watercolor ink, can be mixed and made gradients or blurs. Includes a valve to control the flow and prevent the brush from dripping. Perfect for calligraphy techniques, comic drawing, illustration, etc. Color: Purple Number: 161 Brand: Pentel