No-Slip, No Worries: Rubber side of mat can be used to keep pieces in place or keep the mat firmly in place on table Magically Sealed: Not only is the mat non-slip, it's also waterproof to prevent stains and interrupting game flow Heavy Armor: Mat is cushioned enough to be soft, yet stiff without feeling too mushy Made For Melee: Either side holds game boards firmly in place. Slide cards on pattern side or have dice bounce less on rubber side A Strategic Advantage: Mats are designed for use with multiple tabletop games. If it's played on a table, it's best played with Roll-Play