Uni Ball Air Rollerball Pen Blue 0.7mm

The Uni Ball air is a unique pen, perfect for smooth, expressive writing. The smartly-designed barrel and translucent grip section taper down to that special tip. In other rollerballs, the metal ball is held rigidly in a metal surround, with ink only flowing slowly around the edges of the ball. The air tip holds the ball in an acetal plastic surround, giving less friction on paper when held at an angle, and allowing the ball to move. When the ball is pushed up with a little extra pressure, the ink can flow freely around it, giving a thicker, darker, wetter line, similar to a fountain pen. With light pressure, the ink is only transferred by the ball itself, so you can get finer or broader strokes by varying the pressure a little.