The Intuos4 pen incorporates new Tip Sensor technology delivering feather-light touch (as low as 1 gram) for the most natural feel while drawing. Plus, 2,048 levels of enhanced pressure sensitivity means better performance and accuracy in your favorite applications. The Intuos4 ambidextrous design puts all the ExpressKeys and the Touch Ring on the side of your non-dominant hand so that you can have your most frequently used shortcuts and other convenient functions at your fingertips.