Your favorite oil is in for a treat. With the wickless Airflow 510 tank from Kind Pen, you’ll be creating the clouds of a lifetime and vapor you didn’t before think possible. Made entirely of glass and metal, this cartridge is superior to cheaper plastic alternatives for multiple reasons: glass cartridges are easier to fil, don’t clog or leak as much, and they don’t have any added toxins that could leach into your vapor when heated. Plus, you can take longer drags on a glass tank. This cartridge in particular is a favorite for its notable Airflow control system. By twisting the top of the cartridge, you can adjust exactly how much air you’re using to vape with. This tank is compatible with all 510 threaded batteries--pick your favorite battery, twist on this tank, and you’re ready to go! Choose from either 0.5 or 1 mL capacity tanks according to how much oil you want to store.