Surface Pro Pen Stylus - Stylus for Surface Pro 11/10/X/9/8/7/7+/6/5/Go 3/Go
4096 and Replaceable Nibs - The microsoft pen has 4096 levels of pressure sensitivity. The stylus can recognize the pressure and tilt angle of the stylus to draw lines of different thicknesses (the greater the pressure, the thicker the line).