Here's what other sites are saying:
Always have spare lighter fluid with the Zippo Fuel Canister. Reusable aluminum canister holds enough fluid to fill one Zippo or Zippo Six-Hour Handwarmer. Rubber storage sleeve holds two spare flints. Includes split ring and swivel clip for easy attachment to keys, belt loops, gear and more. Flint-screw tool allows easy replacement of flints on your lighter. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Fuel Canisters.
Zippo Camp & Hike Fuel Canister Lighter ZO11029 121503. Reusable personal-sized aluminum canister holds enough fuel to fill one Zippo windproof lighter or a 6-hour fill on a Zippo Hand Warmer. Includes swivel snap fastener split ring for keys disk to tighten and loosen flint screw and rubber storage sleeve for one extra flint.
For fire or heat wherever you go, the reusable, personal-size Zippo aluminum fuel canister holds enough fuel for a Zippo windproof lighter or a 6 hr. fill on a Zippo hand warmer (sold separately).