Dual Purpose Heating & Cooling Solution to Relieve Muscle & Joint Pain (Black) - 4004This Belt provides uniform warmth or cold to the affected areas resulting in instant joint pain relief. Used by all age groups for both acute or chronic back pain shoulder pain and knee pain patients with neck pain sportsmen & women.SCIENTIFIC DESIGNA dual-purpose heating and cooling solution with a flexible wrap-around design. Can be used as a heating as well as a cooling solution. The flexible design allows the easy and effective application.EASY TO USE COMPACT AND PORTABLE DESIGNThe hot and cold gel pad is easy to use compact in design and can be used at home or at work to relieve pain.