E-pipe model: There are some 510 thread batteries that resemble a pipe, emulating the feeling of “smoking cigarettes a bowl.” Most make use of magnetic adapters, so you're able to simply swap among cartridges by just dropping them in.GuidesGuides 2Guides 3Guides 4Guides 5Guides 6Guides 7Guides 8Guides 9Guides 10Guides 11Guides 12Guides 13Guides