The name 'POP pen' comes from the sound this pen makes when opening it's lid. The pen comes in black and blue with the Papersky philosophy 'Pegs & Pens' sketched in laser . The POP ballpoint pen is made of just two parts, a lid in flexible synthetic rubber and a body in plastic. The rubber part gives it a good grip- and protection on all your journey's. The pen feels comfortable in hand and it's compact size makes it practical to carry around with the added bonus of having an replaceable cartridge.