Wacom KP-501E-01 Stylus It is the professional freehand tool and the standard pen for the Intuos4. The Grip Pen is equipped with a waisted rubberised grip area that reduces gripping power by up to 40%, relieving stress and alleviating writing fatigue. It enables you to work even more ergonomically. The optimum weight, the perfect balance and its tilt sensitivity making it the most natural freehand tool designed for extensive use. It is the must have for professional users.