Never hit a “chunk” or “blade” again when you train with the FlatBall® Training Aid. This ¼-inch high disk is designed to help you hit a ball properly. A regular ball is 1 5/8” in diameter, giving you room for error. Since the FlatBall® is so thin, you can only hit it properly or else you will miss it entirely. When you hit it directly, it will travel a short distance, letting you know the FlatBall® has corrected your striking errors. FEATURES: FlatBall® golf swing training aid Aid helps eliminate “thin” and “fat” hits Does not travel far when hit properly Suitable for indoor or outdoor practice Each set comes with 6 individual aids Aid measures approximately ¼” high 6 Pack