| 摘要 |
PROBLEM TO BE SOLVED: To provide a convenient member for exercising a stroke that helps correct and exercise a putting stroke in golf and a stroke in gateball (Japanese croquet) while visually confirming. SOLUTION: A plurality of target lines 5 and 4 is formed parallelly with and perpendicularly to the striking line of a ball B on a sheet member 2, and a notch 3 parallel with the striking line is formed in the sheet member 2. COPYRIGHT: (C)2003,JPO
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