These prototype pre-production parts are for the original 1998 Mace Windu Figure from the Episode 1 The Phantom Menace Toy line by Kenner / Hasbro.
 
You get 4x First Shot Mace Windu heads still attached to the factory sprue.
 
You could attach them to a production Mace Windu to display, or in my opinion, display them beautifully in their own right still attached to the sprue
 
 They would add to any Mace Windu focus or prototype collection display.
 
This item is part of a large collection of items from a Kenner / Hasbro factory clearance. There were a few quality control samples and various prototype items, this was one of them.