The skin was added to the game on August 18, 2021. It was created by VALVE.
The rarity of Charms of the Firefiend - Belt is Rare, and been equipped it takes a “belt” slot. The skin doesn’t have alternative styles. At this moment the item is available for trade.
At the moment, Charms of the Firefiend - Belt is not on the list of popular skins and is rarely seen in the game.