Genuine Zippo Double Torch Butane Insert with distinctive Zippo “click” Up to 2,300°F/1,260°C odorless blue torch flames; Push-button piezo ignition Refillable with Zippo butane; .9g capacity provides up to 60 5-second ignitions per fill Fits all classic Zippo lighter cases – *does not fit Slim, Armor or 1935 Replica cases Backed by a two-year Zippo warranty