New Open Box Hot/Cold Hand Therapy Adult Small [INNOVATIVE]: Patented HEXFIT design allows the temperature-sensitive gel to flow evenly around the contours of the body, providing CONTINUOUS relief to the pain zone for 10-15 minutes. Ideal for recovery from sports injury. DO NOT MICROWAVE gel packs. DO NOT FREEZE FOR MORE THAN 24 HOURS AT A TIME. KOOL’N FX products come with a 100% SATISFACTION GUARANTEE! [COLD RELIEF & HOT COMPRESSION] Pop the ice pack into the freezer to reduce swelling and inflammation around the thumb. Or use it as a HOT PACK for compression. Increased blood flow resulting from the warm compression improves Carpal Tunnel, Arthritis, Rheumatism, Tenosynovitis, sports injuries & more. Heat Gel Pack in bowl of warm water. DO NOT MICROWAVE.