Multipen BlackThe Papier Tigre Multipen Black combines four pens in onethree ballpoint pen colours (black, red and blue) with a 0. 7mm mechanical pencil, all housed in a durable metal body. The body is engraved, ensuring a comfortable grip and writing experience. How it works? The pen features a special gravity mechanism insidewhile holding the pen horizontally, find the function you need and click the button to start writing. To switch between functions: retract