Suitable: Ideal for camping, cooking, and other heating uses. Options: Choose four, eight, or 16 bottles. Use: To use, simply push and turn the canister into the chosen device and wait for the sound of a click which indicates a tight seal Amount: Each can contains approximately 227g/ 400ml of butane. Butane: Get a set of butane gas canister bottles. Long-lasting: One can of gas can be used for 1.6 hours to two hours continuously after which it should be replaced. Safety: Keep out of reach of children, and avoid direct sunlight. Butane Gas Canister Bottles | Living Social | Living Social