Because the primary weight of the kettlebell extends beyond the hand you are able to perform ballistic movements. (onnit.com)
Depending on the weight of the kettlebell you select, you can target any number of fitness components when you work out with this particular exercise tool. (fitnessandpower.com)
This Russian origin is reinforced by the standard unit of measure traditionally used when describing the weight of a kettlebell; the pood. (fitnessandpower.com)