The Caliburn is a refillable pod device which has a 3.0 mL e-juice capacity, is compatible with the Caliburn G2 or G Coils, and uses a single firing button. Package Contents: 1 X Uwell Caliburn X Device. 1 X Caliburn X Pod Cartridge. 1 X UN2 Meshed-H 0.8 ohm Caliburn G Coil (Pre-installed)