Star Wars Miniatures Battles is a miniatures game by West End Games in 25mm scale, which was produced from 1991 to 1999. Each player takes control of about 6-60 models. The rules are very extensive and designed for smaller battles. The rulebook is based in many places on the role playing game from West End Games. So characters could be transferred from role playing game to the tabletop system for example.
The miniatures have become very rare but can be found on Ebay from time to time. A list of all the boxes that have appeared can be found on the Lost Miniatures Wiki.