The Rebuildable Pods for Geekvape Aegis Boost Pod Kits, the capacity is 2ml, with the new designed single-coil building deck, you can install the pre-built coil on easily,  the Aegis Boost RBA Pod with easy access airflow valve design, you can adjust the intake air to your preference easily, with the quick lock and release design allows you to switch the different Pods. the Pods with convenient top refill design, easy to inject your favorite e-juice without leaking. Note that this RBA is for the Aegis Boost and does not work on the Aegis Boost Plus.