Case insert for the zippo hand warmer (large model) the cases are sold on Aliexpres, Temu, etc.

This insert will fitt:
1x 133ml fuel bottle (zippo and other aftermarket brands)
1x gas storm lighter
1x mini fuel lighter ( can be used as spare lighter because you always have fuel)
1x measuring cup
1x box of Catalyst plates (china, these work much better than the original one)
1x protective bag.