| 摘要 |
A wrist protection device for a bowling game is disclosed, which comprises a wrist mounted plate, an adjusting pin which connects an intermediate plate and includes an apex, a concave portion and a support, an ascending and descending plate which ascends and descends in an interior of the casing attached to an upper surface of the intermediate plate based on an operation of a button and spring, and a moving member which slides along the guide members of the ascending and descending plate.
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