This is a single medium tank for the Martian Rebel forces in Starsiege Rebellion, but also suitable for use in any other similar futuristic miniatures combat game. The "tank" is a converted bulldozer modified to carry two ELF whips.
The miniature comes with one body piece (the square one in the center), two upper section pieces that click together, two treads, a front scoop, and two ELF whips like those found on the Imperial Minotaur. For those interested in scale, the squares shown in the photo are one inch across. A second photo is provided showing the Avenger assembled (heh, couldn't resist) although the whips are not complete in this image.