Twilight Imperium Galactic Gamemat - Rules of Play says:
Celebrate 20 years of Twilight Imperium with the Twilight Imperium Galactic Gamemat for use with the Fourth Edition of the classic game of galactic domination. This 3X3 mat features a slip resistant bottom and is the perfect centerpiece for your games of Twilight Imperium.
The Twilight Imperium Galactic Gamemat features a detailed map layout, providing a guide on where to place your galaxy tiles when setting up a game of Twilight Imperium. These guides not only help you craft your galaxy, but provide a centerpiece that will immerse you in the epic space opera to come.