Provides therapeutic warmth to the shoulder and upper armWashing Instruction - Hand wash in cold water with mild soap. Rinse thoroughly. Air dry at room temperatureSize- (Unit Inch- 36 - 40'') Measure around the chestDo not machine wash or dry. Should a rash or irritation occur, discontinue use and consult your physician. Composition - 50% Nylon, 40% Rubber, 10% Spandex