self-activated relief from headche, mucle aches disposable and instant ice pack SGS,MSDS,TUV,CE Instant Hot ... hot-last about 40 minutes 2.Non-toxic,non-caustic.disposable.Instant Hot Pack Function:1.Easy to use,can reach ... hot-last about 40 minutes,2.Non-toxic,non-caustic.disposable.Use:1.Locate inner liquid pouch at the arrows and ... as the fertilizer after reaction 5. Non-toxic, non-caustic, disposable