The Pentel Sign Pen Brush fiber pen features a fine, flexible, and metal-clad tip. With its brush-like tip, it allows for variable line widths ranging from extra fine to medium broad. Its notable characteristics include 81% water-based ink made from recycled materials, making it usable like a brush. This fiber pen is excellent for drawing, coloring, illustrating, and for calligraphy or lettering. Available colors: black, red, blue, green.