I noticed most if not all of you have "strong" arms prior to "playing" with the Powerball. I have no record nor experience of bodybuilding or what not, just typical college student.
So I was wondering, can this Powerball help to build arm muscles? I'm not talking about having those big guns or extremely huge biceps/triceps; but just moderately nice/lean shaped arms!
Thanks in advance
Nov 30 2007, 06:24 PM
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