Inventors:
Darren Chermack - Bloomington MN, US
International Classification:
A63B 21/072
A63B 21/075
Abstract:
An adjustable dumbbell featuring a handle containing an internal selection mechanism within series of nested weight units. The selection device is operated by a single action, in this case by turning a knob, which extends or retracts bars contained in the handle to attach a desired number of weight units to the handle.