THERAPEARL has been designed with the consumer in mind. The Therapearl Pearl Technology holds the HOT or COLD temperature for the doctor recommended time of 20 minutes while conforming to your body to deliver the perfect relief from your aches and pains. MICROWAVED: Pearls conform and deliver soothing heat therapy to the desired body part. FROZEN: Pearls create the frozen peas effect, and offer ice therapy without sacrificing flexibility. The THERAPEARL wraps are reusable, mess free and extremely comfortable and soft on the skin. Used HOT they provide relief from muscle pain, spasms, joint stiffness, soreness and continuous aches or FROZEN they provide relief from aches, sprains, bruising, muscle sprains and inflammation.