Union Square Park Giant Folding Chess Set. King: 3 3/8" Giant Size Folding Wooden Chess Set. Wooden chessmen with wooden folding board, the inside is lined with felt and elastic strips for each chess piece. Chessmen are felted. Maple/Walnut finished. King: 3 3/8". Case closed: 18" X 9" X 2 3/8". Case opened: 18" X 18" X 1 3/16". Squares: 2 ".