Brush pen, Brush Sign Pen Artist, Pentel. Available in 12 colors. The Brush Sign Pen Artist brush pen has an extra-soft tip which allows you to create ultra-fine to fine lines depending on the pressure exerted on the tip. The marker has a metal ring in the color of the ink. Ideal for handleterring, bullet journaling, drawing or calligaphy. The ink is watercolorable. Tip size: 1.5 mm - Line thickness of 0.03 to 0.8mm