Enjoy a more natural and elegant writing experience with the Ko-Axis™ Rail Pen by TEC Accessories. A welcome departure from traditional pen design, the Ko-Axis™ simultaneously offers ergonomic comfort and beauty while you write. Its 4.5-inch length provides a fluid writing experience while being compact enough to bring with you every day. It also has a 6mm low-profile body, making it even more convenient to carry and stash in a notebook. The magnetic twin-rail mechanism extends and retracts the ink refill with a satisfying snap, eliminating the need for a separate cap. Furthermore, you can easily replace the ink of the Ko-Axis™ Rail Pen in an instant and without any tools. The pen is available in an ultra-light anodized aluminum version and an indestructible titanium version. The Ko-Axis™ accepts industry standard D1 ink refills and will change the way you feel about your pen.