(57) Abstract Objective While massaging, it comes off from the foot and rolls to outside direction OutAs it prevents ru, the massager which can do the rotateSo it is. Constitution On sphere surface of rubber the concave condition of 3mm - 4mm possessionThe sphere which it does in (1) and vinylchloride resins etc, the coneIt is formed by forma and sphere (1) approximately 1/2 projects to the approximately center surfaceIn order to do, the hole has been provided. Furthermore in underside from surfaceA little, way provides the small hole and can turn sphere (1) freelyIt did, it rolls and it installs in the prevention body (2) and simplicity with the fact thatIt finishes.
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