Zebra has done a superb job combining all the desirable characteristics of a fine tipped gel ink pen into one creation - the Sarasa Push Clip.
The Sarasa features a fine 0.4 mm gel pen tip that is sturdy enough to endure hard writing pressure, drops, and other pen abuses. It's also retractable, and is equipped with a binder clip that allows it to clip onto thicker object without breaking. It has smooth writing, is affordable, and is even made of recycled plastic. All of these characteristics make it a favorite for travelers and office workers who want a high quality pen you can take anywhere, and yet lose without too much monetary sorrow.