| 摘要 |
A barbell or dumbbell or exercise device includes a handle having two end portions, a weight member attached to either of the end portions of the handle and having a ball guiding raceway for engaging with a rolling device which is movable along the ball guiding raceway of the weight member for generating a vibration to the weight member and the handle, the weight member includes a housing attached onto the weight member and engaged with the rolling device for retaining the rolling device in the weight member, for example, the housing includes a chamber for receiving the weight member and includes a peripheral flange extended radially and inwardly into the chamber and secured to the weight member.
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