Grenco Science G Pen Roam Portable E-Rig VaporizerIntroducing the G Pen Roam, an all in one portable vaporizer intuitively designed to provide water filtered concentrate vaporization on the go. Featuring a spill proof, self contained borosilicate glass hydrotube, a fully Quartz tank, and powerful 1,300mAh Lithium Ion Battery, the G Pen Roam heats to temperature within seconds of activation to deliver smooth and flavorful draws with ease. The G Pen Roam tailors to each users flavor and heat