uni-ball® Power Tank RT Ballpoint Retractable Pen, Blue Ink, Bold, Dozen

Designed to write in extreme conditions, the uni-ball Power Tank RT Retractable Ballpoint Pen features a pressurized tank so you can write upside down. It even works in extreme conditions, including on wet surfaces or in cold temperatures. The retractable pens also come with a durable pocket clip and a textured grip for greater comfort.