Take the customization process one step further with your choice of insert. The single flame insert offers an odorless heat source that lasts longer than before. Zippo’s lighter insert collection, including this single torch option, is designed to perfectly fit any Classic Zippo lighter case. For optimum performance, fill with Zippo butane fuel. Comes packaged in a gift box. Made in China.Note:This insert comes unfilled. Please fill with Zippo butane fuel.