Thera-Temp Microwaveable Heating Pad - Moist Heat Therapy for Natural Drug-Less Pain Relief, 9in x 18inDescription DEEP PENETRATING moist heat is effective relief for TENSION, SORENESS, ARTHRITIS, STIFFNESS AND CHRONIC PAIN. FSA Eligible. PROFESSIONAL QUALITY PAD is constructed of soft fleece on the side nearest the skin and an insulated, Velcro compatible, multi ply fabric with vapor barrier on the outside to direct the moisture and heat toward the body. INCLUDES: one 3in x 27in elastic and Velcro belt to secure the pad on the desired target body