OXVA Origin Replacement Coils are designed to be used with the OXVA Pod System. Each pack includes five replacement coils. The some coil variations offered are the UNI 0.2ohm coil , UNI 0.3 ohm coil and the UNI 0.5 ohm coil. All of it feature Mesh Coils for longevity and flavor. These coils are designed to be placed within a removable pod and are friction fit into the pod itself.