OVNS JC01 Pod Cartridge is compatible with JC01 battery and JUL battery. The JC01 Ceramic Pod uses Ceramic coil to ensure the purer flavor taste and extend the lifespan of the pod. It can hold 0.7ml liquid and support 1.5ohm resistance. The JC01 E-liquid Pod has the same capacity as the Ceramic Pod. It supports 1.8ohm resistance. Environmental PEI material is healthier. 3pcs and 4pcs are optional.