Kettlebell

The kettlebell, cannonbell or girya (ги́ря) is a cast-iron or steel weight (resembling a cannonball with a handle) used to perform ballistic exercises that combine cardiovascular, strength and flexibility training. They are also the primary equipment used in the weight lifting sport of girevoy sport. Russian kettlebells are traditionally meas...
Found on http://en.wikipedia.org/wiki/Kettlebell
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