ULTRA HEAT TECHNOLOGY: UltraHeat Technology achieves highest temperature & maintains consistent heat for maximum relief. Ideal for Hot Therapy in order to relieve pain, sports injuries, arthritis, sore neck, backache, stress, aches and discomfort in the lumbar/lower back area and abdominal/stomach area, hypothermia, sprains, growing pains Experience relief from muscle stiffness, joint pain and body cramps. كيس تدفئة