NO PRESCRIPTION REQUIRED: Same ThermoActive technology of our medical line, but adapted for consumer use.nHELPS ACCELERATE RECOVERY from injuries while delivering targeted relief from pain for the ankle.nHOT OR COLD THERAPY: Either heat in microwave or chill in freezer or refrigerator, depending on the stage of your recovery.nIncludes one support, one compression air pump, one pair of extender straps, and one removable hot/cold gel pack. Washable and reusable.n100% SATISFACTION GUARANTEE: If you are unhappy for any reason, send back to Amazon within 30 days for a full refund of the purchase price.n