Simple idea that keeps your lighter running, in fact the volume is half the filling jug for the zippo hand warmer. So you can carry fuel safely for your warmer, being prepared for winter
Make sure your flints are long enough if carrying one in the rubber tube, it could get lost. but you always lose a flint at an unfortunate time.
Wanted one for years and it stands up to that wait.
Be mindful that the logo is screen printed hence will wear off over time quicker if hung from keys, the little disc to turn the fling screw is stamped with the zippo logo.
I would buy this again as a stocking filler for a friend who has a zippo or other brand of fluid lighter