| 摘要 |
A hoop for exercise, entertainment and rehabilitation is preferably comprised of closed cell polyethylene having a density in the range of 2.0-2.6 lbs./ft3 (32 kg-41.6 kg). Features providing visual, auditory, olfactory and/or tactile stimuli may be attached to the hoop. The hoop may also comprise elements such as a sound chip or an attached LED.
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