The HeatFreeze Arch Massager can provide just what you need to relieve pain from plantar fasciitis, heel spurs and aching feet. Simply roll your feet over the sphere and allow the textured, knobby surface to provide a deep tissue massage. Place it in the freezer for cold therapy, or warm it up in hot water for soothing heat. Knowing where to apply pressure to your feet can make the difference between pain and comfort.