The G Pen Roam is a concentrate vaporizer with a unique built-in water filter known as Hydro-Tube. The spill-proof Hydro-Tube cools and filters your vapor on-site without needing a bong as the middleman. Powered by a 1300mAh removable battery, the vaporizer heats up in a few seconds and has a wide range of temperatures to choose from. It comes with a hemp travel case that holds all the accessories you need for a session.