MEDIBEADS Moist Heat/Cold Hand WrapMEDIBEADS Moist Heat Cold Hand Wrap Item #34510 Relief is at hand with the MediBeads Hand Wrap. Works without restricting movement, so can be worn while doing range of motion exercises or while relaxing . For moist heat therapy, just microwave for a minute or two, and enjoy deeply penetrating moist heat therapy for up to 30 minutes. The patent pending MediBeads sewn into the wrap absorb moisture from the air to create moist heat, so no water or mess