Dry Heat Therapy relieves localized pain, increases localized blood circulation, increases range of motion and relieves minor pain and stiffness associated with nonrheumatoid arthritis. Dry Heat increases circulation and assists in pain relief. Massaging Action provides warmth, increased local circulation and pain diminishing effects to help increase joint range of motion. Limb Buoyancy allows patients to freely perform a variety of resistive exercises with increased mobility and decreased pain. The fluidized Cellex particles act like a low viscosity fluid, allowing limbs to be suspended much like in a liquid state. Single extremity unit for treating the hand, wrist, elbow, foot, and ankle. Includes thirty pounds (13.6 kg) of Cellex Dry Heat Media..