Swimming pool water baseball that's fun and challenging for all ages. Pitcher's Duel Water Baseball turns your in-ground or above-ground pool with a deck into a water baseball stadium. Pitchers throw regulation sized, waterproof wiffle balls into four target holes to score points. Strikes pitched into the holes are caught by the oversized catcher's mitt and returned into the water towards the pitcher. Balls pitched near the strike zone are also blocked by the big mitt so no one has to get out of the pool to chase the ball.