This genuine Zippo butane insert offers you the ability to switch your classic Zippo lighter to convenient butane. This yellow flame insert offers a classic looking flame and can be used in any standard size Zippo lighter. These inserts are interchangeable in seconds offering you the benefits of both fuel types for your Zippo.
 
These inserts are meant only for standard size Zippo lighters and will not work in Zippo slim lighters.