Features: Catalyzer coil provides ultimate windproof flame. Withstands winds of 70-80 miles per hour. Burns with clean hot flame at 2,000 degrees Fahrenheit (1093° C). Flame Indicator Window located on side of combustion chamber glows when lighter is ignited. Fuel Level Indicator visually reveals fuel level. Piezo-Electric Ignition System eliminates need for batteries or flints, which fail when wet. Piezo-electric system permits easy, one-handed operation good for over 30,000 ignitions. Water Resistant O-Ring Seals keep water out when lighter cap is closed. Optimum performance in altitudes up to 8,000 feet. Not intended for use in altitudes over 10,000 feet. Specifications: Fuel: Quadruple-refined butane. (less refined fuel not recommended) Fuel Capacity: .035 oz. (Unit sold with out fuel – fuel sold separately) Dimensions: 2.6″ x 1.6″ x .5″ Weight: 2.2 ozs.