These coils are designed for use with the Smok LP2 Pods used in many kits and devices such as the Smok RPM 4 kit, Smok RPM 4 LP2 Pods, Smok G-Priv Pro Pod & Smok G-Priv Pod Kit. Smok RPM 4 LP2 Pods. They can also be used with any kit that features LP2 refillable pods.