1.With ISO, SGS,TEST REPORT etc 2.Heat duration time:6hs 3.The highest temp:45.C 4.Foot pad Foot padWith CE, SGS,ISO and TEST REPORT The biggest manufacture for natural heat products Designed for healthcare and warmth-keeping,skiers, hunters, fishermen, golfers, or people who work or play in the cold for long hours.Pain relief and muscle relaxtion for shoulder ,waist ,back, legs,and so on. ...