Just bought a KGM Vector Thunderbird lighter...

[Wankel]

The insert is great if you want to use it in a Zippo. You can't tell the difference hardly from a real Zippo's innards. Lifetime warranty.

However, the Thunderbird external case isn't worth a good poot. I got one with leather trim which peeled off almost immediately. Cheap yellow flaking glue. Actually, non-glue. Cheap, cheap, cheap. Not worth sending back.

So if you want one of these lighters, get an all-metal case or save yerself $2 and just get the insert for your Zippo case....