I myself have never used a Kettlebell, but apparently they’re good for a variety of strength training exercises.  This innovative design provides a multitude of weights in one simple package.  Just simply slip on and off the plates to create weights ranging from 5 to 20lbs.  Course, all that don’t come cheap, as the Powerbell will set you back $200.  But as the maker points out you’re saving $100 by not purchasing individual weights, which can take up much need space.

[via Uncrate]

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