My brother gave me a Dyna-Flex PowerBall last year, but I haven’t used it much, for no good reason. Who wouldn’t want to work with this thing? It’ll give you fingers of steel, and you’ll be climbing walls like Spidey in no time.
Yesterday, I started playing with it again. I’m getting it up to just about 6000 RPM. Is 10K RPM out of reach? Maybe, but I hope not!
See more progress on: Get My Powerball to 10,000 RPM
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