This pressure- and tilt-sensitive drawing pen was created to provide the immediate feedback of actual ink on paper. Simply place a sheet of paper on top of your tablet and your Intuos4 inking pen can both "draw" on the paper and while digitally record the drawing on the tablet. The Inking Pen comes with "inking cartridges" and two standard Intuos4 pen nibs for standard pen tablet "inkless" input. The Intuos4 Inking Pen has the same pressure sensitive tip as the Intuos4 Grip Pen, but does not have a digital eraser or the side switches. Note: When you purchase an Inking Pen, it comes with a standard nib in the pen. Use the nib extractor (silver ring) to gently remove the standard nib from the pen. Then insert one of the silver-colored cartridges that come with the Inking Pen. The cartridge tip has a waxy coating that you will need to rub off before you can begin inking. Note: The Intuos4 Inking Pen works with Intuos4 generation tablets only.