| 摘要 |
A convex, hemispherically shaped striking member is removably attached to the blade of a putter. Practice putting strokes are executed. The trajectory of the golf ball indicates whether the golf ball was struck squarely. Repeated practice, resulting in putting strokes in which the ball moves in a straight line in the intended direction, builds muscle memory for executing a desired putting stroke and improved concentration and focus on the golf ball.
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