Wrist arm exerciser

DETAILED DESCRIPTION In one embodiment, the invention comprises a portable hand-held exerciser of low-cost, durable and simple construction with left and right gripping surfaces connected by a torsion bar that provides resistance to a twisting force exerted by the wrists and fingers about its longitudinal axis.
In the second embodiment, additional handles are inserted into the ends of the torsion bar, so that by moving the arms back and forth pivotally, the torsion bar may be twisted about its longitudinal axis.
By holding one of the grips or handles firmly, the other hand is free to rotate the torsion bar in either direction and thereby exercise opposing muscles.
Alternately, both hands can be simultaneously used to exert a torsional force on the torsion bar.
It is accordingly, an objective of the current invention to provide a portable hand-held exerciser to rehabilitate, and develop muscle strengths and endurance predominantly in the wrists, arms and fingers.
Another objective of this invention is to provide a hand-held portable exerciser which is simple in construction without complex friction disks and spring type mechanisms, that is easy to assemble and cheap to manufacture.
Yet another objective of this invention is to provide increasing degrees of torsional resistance by snapping clips on the thin-walled radially extending members of the torsion bar.