| 摘要 |
PURPOSE: A gym ball saddle is provided for user to use while leaning comfortably by installing one more gym ball in the back seat, and to restrict the movement by restricting and fixing the bottom part and side part. CONSTITUTION: The gym ball saddle removes the vibration and anxiety and gives elasticity and makes boarding comfortable by using gym ball in the saddle. The saddle holds the bottom part and restricts the side part and restricts the movement. The saddle makes globe of ball in the bottom part of the mold and leave specific part long in the entrance from the circle and fix the part to the plate by binding to the fixing plate of the bottom. The gym ball can transform in to the cushion type so leaning back is possible.
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