What it is: Discreet battery pack with 3 settings - compatible with most 510 thread cartridges. Best used with Paper Planes 1g cartridges, available here at Exhale MV! A Bit About The Brand: Paper Planes Extracts takes pride in extracting some of the finest cannabis in the world. All cannabis is sourced from local growers in California and then extracted using the best equipment that the industry has to offer. "