Oil vaporizer: This kind of vaporizer is built to perform with oil-based mostly herbal concentrates, that are liquid and rather runny. The Shiv is definitely an example of an oil vaporizer. Because its 510 threading is retractable, it’s created for use with slender oil cartridges. Good Link: A great 510 https://www.lookah.com/vaporizers/510-thread-battery/