The Trekker Stormproof lighter is a rugged lighter for all of your tough outdoor needs. It"s Piezo-Electric Ignition System eliminates need for batteries or flint and permits easy one handed operation good for over 30,000 ignitions. The catalyzer coil provides ultimate windproof flame, withstands winds of 70-80 miles per hour and burns a clean, hot 2,000° F flame. It"s flame indicator window located on the side of the combustion chamber glows when lighter is ignited, and the flame adjuster ensures best fuel mix at varying altitudes. Water resistant o-ring seal keeps water out when cap is closed, and a stainless steel wire closure keeps it closed. Rubberized case allows for easy grip and includes wrist lanyard. The fuel capacity window allows easy view of fuel level, holds an amazing 4g of fuel, enough for over 1,000 ignitions. It measures 3.7" x 1.2" and only weighs 2.5oz.