Contains a butane/propane gas blend that provides a steady and consistent burn across a wide range of temperatures at lower altitudes, making Performance gas ideal for general use. All Coleman cartridges feature a standard screw thread for easy attachment of Coleman stoves and lanterns. For safety, the cartridge features Coleman\'s double safety resealable valve, this means that the cartridge can be disconnected and reconnected to your device, without leakage.High-performance butane/propane mix (80/20)Self-sealing safety valve - simply push and turn the device onto the cartridge until you hear a click for a secure and tight connectionThe cartridge can be removed and re-attached, even if not yet emptySize: 9 x 10.5 cmWeight: 410 gGas: 240 g