Moist Heat Soothes Arthritis Pain. New, advanced four-stage therapy switch. Simply apply the pad to your joint pain and press the on button. The new control switch takes care of the pain from there. You relax as the system cycles through a 20-minute optimal moist heat therapy session.

Three Thermophore Arthritis Pad Sizes:

• Back/Large (14" x 27") for an entire arm, leg or back 
• Neck/Petite (4" x 17") for TMJ, neck and sinus 
• Joint/Medium (14" x 14") for a shoulder, elbow or knee