| 摘要 |
PROBLEM TO BE SOLVED: To prevent the reverse flowing of blood, and to maintain the erect state of penis for proper time by properly fastening the root portion of the penis in an auxiliary tool for sexual intercourse fixed to the root portion of the penis. SOLUTION: An auxiliary tool 1 fixed to the root portion of a penis is provided with flexible elasticity, and a fastening hole 2 formed in the center to prevent the reverse flowing of blood by fastening the penis.
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