MegaChess Giant Premium Chess Set with 25 Inch Tall King and Giant Chess Mat - Black and White (32) Chess Pieces - 25 inch King; (1) Giant Chess Mat - 9 x 9 feet(L x W); (4) Metal Stakes Most popular size of all; Made of High-Density Plastic; UV protected; Waterproof Heavy-Duty Nylon Chess Mat; 13-inch squares(L x W); 9 x 9 feet(L x W) when in use Metal grommets at each corner for use with metal stakes to secure mat to the ground Perfect for playing at the park, beach, campground or anywhere friends or family gather