These are OK inserts but nothing to get really hype about. If you have an old zippo that youd like to carry every day without having to deal with oil fluid this is a useful insert replacement. The reservoir is small but understandable given the inserts size. Depending on what your lighting you will get about five maybe six full size cigars lit before needing refilled. Again, understandable given the size of the insert. Ive found that the fuel reserve lasts quite a bit longer limiting its use to just lighting rillos which is where I think this insert really shines. The single flame works well and doesnt overkill cigars as your lighting it unlike my triple flame lighters. Flame is adjustable. I found that it fits a little loose in the zippos I own and it slowly works its way out of the zippo body when I open and close the lid. I ended up shimming the insert with some pieces of electrical tape and it now stays seated properly. The refill nozzle isnt quite the right size for a standard butane recharge can, I get a small amount of fuel leakage as I fill the tank but the tank still gets filled fully. In the end a higher end single or double flame butane lighter will have a bigger tank and better fit/finish but this is a good option if you want the zippo form factor without the oil and flint insert. IMHO For the price of a new zippo and this insert you can get a decent single torch lighter of better build quality but you loose out on the zippo body compatibility these are built for. If the zippo aesthetic is important to you then this is an option, if not then Id pass over it and pick up something of better quality for the same price as a zippo and the insert combined.
