Penco Perfection Ballpoint PenA compact lightweight bullet shaped pen, available in a variety of colors by Penco. Built with a body weighing just 8 grams (0. 3 oz), the streamlined barrel is very comfortable to hold in your hand. Comes in permanent oil based black ink, also refillable with Japanese 4C type refills (2. 3 67mm). The pen fits snugly in your pocket when not in use, and can be clipped onto your chest pocket or a notebook. When it's time to write, post the pen cap onto