Abstract: A metal ball is contained in a tubular container having one end of sound deadening material and the opposite end of a material that produces a sound when struck by the ball falling through the tube from the opposite end. The container is arranged for mounting preferably on the leading hand of a practicing golfer, such that the ball impacts the sound-producing end of the tube when the leading hand reaches the desired position at the top of the backswing segment and there pauses for a second or so, and at the desired position of the end of the follow-through segment. The mounting of the container is on a golfer's leading hand glove, wrist band, or other supporting device, with the sound producing end of the container facing the fingers of the practicing golfer.