Working while on the go sometimes means that you're not able to slow down and jot down notes at a normal pace. These Paper Mate pens have a pressurized ink cartridge that allows you to write from any angle, so you can work standing up. These EraserMate pens have a pressurized ink cartridge that allows you to write from any angle. Ink is formulated to be erased. Built-in eraser on the cap. Nonrefillable. Includes 5 med point pens with red ink.