1. Prime kampo physiotherapy pain relief heat pad 2.MSDS,SGS,ROHS,CE,EN71 standard 3. ... colorRed,blue,yellow,clear,purple,green Functions Activate blood circulation,Pain relief ,muscle/eye relaxation,ect. Validity3Years Storage and useAmbient temperature ... effective on muscle relaxation, muscle aching, back aching,neck and shoulder aching,cramps ,arthritis pain,tenontodynia and etc.2)For warming ,it ...