The G Pro series of vaporizers consist of a few different styles and designs. The least expensive model is the original GPRO. The rest of the selections include a more fancier design such as the Snoop Dogg edition, DGK edition and the Black Scale. All four virtually work the same however the fancier selections will not go unnoticed. All devices are intended to use only for dry herbal blends. These vaporizers can be considerred both portable vaporizers and vaporizer pens due to their shape and design. The devices are very easy to use and each come with their own cool set of accessories. Please see all photos to correctly make your selection. The video above will teach you exactly how to use the device without having to look through a manual, therefore please watch it before you make your purchase so that you are comfortable with how it operates. All options are fully convection style vapes that produce true vapor with no combustion. These kits arrive with everything you need to get started.