Dominion: Gripmat Playmat 16" x 24"

from the publisher page "Officially Licensed form Rio Grande games! This play mat is perfect for playing Dominion, and any or all expansions! Great for keeping your play area organized. Best of all, helps keep the stacks of cards from sliding into one another. GripMat can be gently slid on smooth surfaces to allow players to get a better look at their choices as well."