The Torex Hot & Cold Finger Sleeve, model R2540, is a hot and cold compression wrap designed to reduce pain or swelling in a finger. The hot/cold wrap consists of a polyurethane sleeve that is heated with hot water or cooled in a refrigerator or freezer. The hot and cold sleeve comes with one stretchable non-latex ICS insulating compression sleeve and application instructions. SIZES: One size fits all. DIMENSIONS: Hot and cold sleeve and inner compresion sleeve are both 4 inches long with a 1-inch center opening. WEIGHT: 3.25 ounces.