Tesha’s Surface Pen is an all-aluminum pen that works with Microsoft’s latest Surface products, as well as other OEM portable devices. Sporting 1,024 levels of pressure sensitivity it allows you to write, draw, and erase without issue. The pen itself takes a battery, with one included to get you started. Much like other pens on the market, there are two buttons on the side. There is one for erasing and the other for a right-click.