How to Use the G Pen Pro Vaporizer - New 2017 Edition
The new G Pen Pro is finally here. It's small but mighty, and incredibly easy-to-use. We break down how to get the most out of the latest from Grenco Science, from charging to loading down to cleaning it up and more. If you don't already own the 2017 G Pen Pro, here's your chance to see what's new.