Sometimes someone hands you a document that is so important that you just need to sign it in the most flamboyant, glamorous, and elaborate way possible. Using the butterfly knife pen is similar to saying a catchphrase as you slowly put on your sunglasses, instead as you're about to sign a document, you slowly take out your butterfly pen, swing it open using a few different ninja style moves, and sign it with style. The Butterfly pen is black and writes with blue ink. Check out the video and/or animated GIF below to see the butterfly pen in action.