| 摘要 |
<p>Exercise wheel, for developing the belly muscles, comprises a wheel on an axle with a handle grip, pref. of plasticised PVC, at each end. The wheel has a plain bearing and the axle has an o.d. corresponding, with a tolerance for movement, to the bearing's i.d., and has a length such that the hand-grips can be slipped over it and are held on it and maintain the wheel in position by pressing against it.</p> |
