Coleman Performance Gas C300 - 240g - Gas Cylinder / Tourist Cartridgecartridge screwed on to tourist burners; high calorific value of gas; easy to install just screw it to your own tourist burner; It has a safety system that protects against gas leakage and ensures safe use; does not take up much space in your luggage; Gas weight: 240 g dimensions: 90 x dia. 105 mm weight: 361 g Fuel: Propane 30% and Butane 70% The cartridge is single use (they are not refilled, due to the risk of water getting inside causing corrosion