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 a replaceable cartridge.