The EXOTAC nanoSPARK Flint Kit is the perfect way to supplement your nanoSPARK to make sure it's always up and running. This kit comes with 2 replacement o-rings and 5 replacement flints. The o-rings help prevent the nanoSPARK from unscrewing and act as a barrier to any moisture trying to find its way into the internals. This keeps your tinder dry and ready for use when you need it.
Also, after heavy use, you may need to eventually replace a flint. With 5 replacements on standby, you will ready when the time comes.