4.5ml cartridge for the Innokin Kroma Z kit. It comes with two Z coils of 0.3 and 0.8ohm as well as an MTL drip tip and an RDL drip tip.
Once the pod has been removed, by pushing up and against the eliquid fill tab, simply pull the tab to one side to fill with your favourite e liquid
The airflow control ring can also be adjusted to either a tight, MTL draw or an open, RDL draw.