Platinum-catalyzed glass fiber burner offers quick and sure lighting. Produces a radiant heat without flame. Extra warmth: produces more than 10 times as much heat as most disposable warmers. Economical: constant warmth for up to 24 hours with just 0.4 oz of fuel. Environmentally friendly: reusable (except for the burner) and virtually pollution free. Low odor. Convenient size: thin profile makes Handy Warmer easy to use and carry. Includes handy warmer, warming bag, filling cup and easy usage instructions. Requires Zippo Lighter Fluid or other premium butane lighter fluid (not included).