| 摘要 |
An exercise device for strengthening a user's targeted muscle, such as a bicep or the like, and a method for the assembly of the exercise device. The device includes a spherical housing having a weighted casing disposed. The housing has a cut-away portion and further has an opening formed therein which are in communication with each other. When the hand of the user is disposed in the opening, a forceful grip is not required during use of the exercise device. Thus the conjunctive use of adjoining muscles is substantially obviated, and the development of the targeted muscle is substantially improved.
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