Soothe and relax those sore, aching muscles with the Herbal Concepts Upper Back Pac. This all-natural, heat-releasing pack helps to relieve pain and stiffness in the upper back and shoulders. Filled with a blend of herbs and grains, simply heat in the microwave or cool in the freezer and apply to the desired area. Perfect for anyone who experiences tension, stress, or soreness in the upper back, the Herbal Concepts Upper Back Pac is a natural solution to pain relief.