Experience the perfect fit of the Zippo Butane Lighter Insert, designed for all classic Zippo lighters. Featuring a single adjustable bright blue flame at the push of a button, this rugged and durable insert is built to last and retains the iconic Zippo "click sound". Enjoy the added bonus of a 2-year manufacturer's warranty and up to 100, 5-second lighters with a 1-inch flame height when completely filled. Proudly made in America, this insert also boasts wind-proof functionality and a push-button piezo ignition. Please note, this product is intended for legal herbal use only and is not suitable for tobacco.