Osaka, Butane Burner for Tabletop Siphon Coffeemakers Instant ignition system. Just twist the knob to open the gas flow, and press the lever to ignite. Fits 30 gram of gas, which should last about 45 minutes. Made from high quality materials. Designed for the Osaka Siphon Coffeemaker, but works for most tabletop siphons. Adjustable flame. Non-slip design, Comes with a base for easy refilling.