| 摘要 |
An exercise apparatus comprising a pair of hand-engageable spring-biased exercise units, each comprising: a thermoplastic base element in the form of a frustoconical dish; a thermoplastic cap element having a dome-shaped hand-engaging surface; said base element includes a non-skid surface adhered to the bottom thereof; a steel coil spring secured between said base member and said cap member; and a hand strap traversing said cap member and being secured to peripheral edges thereof whereby said exercise device will support the arms of an exerciser during exercising and will provide a bouncing force to said exerciser upon the periodic compression and return of said coil spring.
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