Microsoft Surface Bluetooth 4.0 Pen for Microsoft Surface, EYU-00041, Poppy RedTilt the tip to artistically shade your drawings just like you would with a graphite pencil The rubber eraser on the tail end rubs away your mistakes, just like the eraser on your graphite pencil Writes like pen on paper, with precision ink on one end that enables tilt1 and a natural feeling rubber eraser on the other Sketch, shade, and paint with artistic precision and finer control with 4,096 pressure points that respond to the lightest touch Ink