Natural Monkey Ball Tic Tac ToeTic Tac Toe with a twist using monkey fist knots for the Xs and Os. Each ball is a bit over 3 inches and the board is 11x11 inch. The monkey fist knot was a clever trick sailors used to add extra weight to a heavy line. Theyd tie it at the end of the line to throw a cable from ship to shore. But our monkey fist knots dont have that center weight, so theyre a bit more user friendly. Great gift for any sailor friend or foe. Perfect for a coastal house