| 摘要 |
PROBLEM TO BE SOLVED: To solve an issue of conventional golf practice devices that a player cannot be conscious of whether the body axis is swayed or the head is brought up because a player cannot confirm a sight line of him-/her-self. SOLUTION: A laser pointer is worn on a cap of a player by a wearable clip and aligned with a sight line. Thus the player can be conscious of body axis sway and head-up. COPYRIGHT: (C)2007,JPO&INPIT
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