The B60 Aegis Boost 2 are cartridges are compatible with the B60 Aegis Boost Pod by Geek Vape. They can hold up to 5 ml in e liquid and are made in PCTG. With a filling from the top avoids you from removing it. 

The B60 Geek Vape cartridges are compatible with all the B-Series coils by Geek Vape. 

B60 Aegis Boost cartridges are made by Geek Vape. 

Cartridges sold in a box of 2.