Tiny Epic Tactics: Play Mat - Rules of Play says:

This 26” x 26” slip resistant neoprene Tiny Epic Tactics game mat beautifully and functionally enhances your gameplay experience. The mat provides an engaging environment for your game and gives you all the space you need to organize your team of Tacticians with their own play slots, as well as spaces for your Tactics deck, and room for your game boxes to sprawl. This game mat is a can’t miss and gives you the best experience possible in Tiny Epic Tactics.