The Genuine Zippo Butane Lighter Insert is the perfect solution for those who prefer butane fuel over traditional lighter fluid. With a cleaner burning flame and adjustable height, this insert is refillable with butane fuel for long-lasting use. The push button ignition makes lighting up a breeze. This insert is designed to fit all regular Zippo lighter cases, allowing you to keep your favorite lighter while upgrading its functionality. Please note that the lighter insert is empty on delivery, so be sure to fill it up before use.