This is an authentic prop replica from the film "Mad Max: Fury Road." This true to form replica depicts the belt buckle of Charlize Theron's character, Furiosa. The flaming circle and skull represent the warlord Immortan Joe and his war boys.
I created this 3d model in Maya and printed it for a Halloween costume/cosplay for my wife. It came out pretty well!
The holes on either side are to mount the buckle with 3/8th screws. To be authentic to the costume, this should be mounted on a leather patch and accessorized with hanging chains (see final screen shot).