| 摘要 |
PROBLEM TO BE SOLVED: To provide a grip tool formed by fitting a rubber to a ball and capable of giving an stimulation to one's hand and one's muscles and nerves related to the hand when holding the grip tool and when opening the hand, and capable of preventing a fall of the grip tool when opening the hand. SOLUTION: The rubber 2 is formed with a thumb ring 3 and a middle finger ring 4 on a diagonal line, and the ball 1 and the rubber 2 are fixed to a connection part 5.
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