Sterno 50130 8-Ounce Butane Fuel Cartridges, 12-Pack (12) pack of 8-ounce fuel canisters with a 2 to 4-hour burn time Fits Sterno portable butane stoves and torches Designed to expand and release gas evenly during extraordinary pressure build-up Tops are double-seemed to protect against separation when venting Disposable and non-refillable