| 摘要 |
PROBLEM TO BE SOLVED: To provide an auxiliary float tool for beginners of swimming and physical handicapped person in a swimming pool without limiting the movement of both arms and both legs and without generating a displacement of the installation position due to the water flow. SOLUTION: A surface float 2 and a back surface float 3 are fitted for fixation to a waist belt 1 to be wrapped around a waist of a user A. The front float 2 and the back surface float 3 are tightly fitted to the waist part, namely a narrowed part between a lower part of the breath bone and an upper part of the pelvis, for installation.
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