The Bamboo Stylus duo is perfect when you want to carry only one writing instrument. Simply switch between working on the touch screen and traditional paper by the flip of a pen. The ink cartridge uses standard refills and hence delivers a writing sensation similar to regular ballpoint pens. The pen's cap can be attached to either end. Whether writing on your tablet or taking notes on paper, the Bamboo Stylus Duo / Pen from Wacom allows you to easily switch from a stylus to an ink pen. With a smooth, responsive pen nib you can take advantage accurate touch response whether writing or painting on your tablet. The integrated pen tip then allows you to quickly flip the stylus over and utilize the ink pen to jot down notes. The Bamboo Stylus Duo uses standard refills giving it the feel of a ball point pen and making refilling a breeze. With an elegant design, a satin-textured metal body, and quality craftmanship synonymous with all Wacom products, Bamboo Stylus duo is the ideal tool for writing, drawing or doodling in both a digital and analog world.