主权项 |
1. A physical therapy ball comprising:
A. an integral spherical structure including:
i. a hollow outer spherical body having an outer surface,ii. a plurality of spaced protuberances extending radially from and being integral with said outer spherical body,iii. an inner spherical body, andiv. a standoff positioning said inner spherical body in a spaced relationship to said outer spherical body thereby to form a gap therebetween, and B. a fluid material in the gap for establishing the temperature of said outer body. |