Take the customization process one step further with your choice of insert. Zippo's new lighter insert collection includes: a Single Torch Butane, Double Torch Butane and Rechargeable Arc options, and are designed to perfectly fit any regular Zippo lighter case. Both the Single and Double Butane Inserts offer odorless flames at the push of a button. For optimum performance, fill with Zippo butane fuel. Comes packaged in a gift box. Two Plasma Beams cross to ignite the Rechargeable Arc Insert. The double beam offers a windproof heat source that can easily be recharged and reused. Each insert is stamped with the best in class guarantee and are packaged in a gift box. Note: The Single and Double Butane Torch Inserts are packaged and shipped unfilled. For best use we recommend filling with Zippo butane fuel. Each insert is sold separately without lighter case.