| 摘要 |
A massage cushion has a body. A plurality of first protrusions and a plurality of second protrusions are formed on a side of the body. Each first protrusion and each second protrusion are made of the same material. A diameter of a root portion of each first protrusion is greater than that of a root portion of each second protrusion. The first protrusions and the second protrusions are so constructed that the buttocks of a person sitting on the side of the body are in contact with at least one of the first protrusions and at least one of the second protrusions. The first protrusions on the body cover an area that corresponds to an area occupied by buttocks of a person sitting on the side of the body.
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