This Coleman C500 Gas Cartridge is a resealable gas cartridge. It has a screw valve for use with camping stoves, gas lamps and lanterns, ideal for camping. It contains a propane/butane mix, for a steady and consistent burn across a wide range of temperatures. In addition, the cartridge can be disconnected and reconnected to your appliance in complete safety without leaks, due to the Coleman double safety seal valve. Compatible with all Coleman resealable appliances. Suitable for The Coleman C500 gas cartridge is suitable for camping as it has a screw valve for camping stoves, gas lamps and lanterns.Product Dimension The pack size is 105 x 160 mm and weighs 4kg each. Customer Questions and Answers Is the c500 five times the fuel of a c100 Answer: Yes The C100 is 100g of fuel and the C500 is 500g of fuel.