| 摘要 |
A hand held exerciser includes a ball body having a resilient cover and a putty filler. The putty is preferably a tacky, water based material which is relatively freely compressed but generally does not flow in a liquid-like manner. The cover can be made with a plurality of elastomeric balloons around the putty. An outer opening in an outer balloon of the cover either is covered by a durable seal member or by attachment hardware having an attached object such as a key. The putty enables the ball to conform more exactly to one's hand grip, while allowing good resistance, weight and resiliency. The putty filler also helps to reduce unwanted spillage of filler material, and provides additional benefits not found in existing devices.
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