Brand from Japan: Kobayashi. Air-activated patch generates an average 40°C natural therapeutic heat which quick penetrates into the affected areas continuously for 8 hours, effectively relieves joint pain, knee pain, elbow pain, muscle stiffness and fatigue.With special elasticated wrap allows it to cover firmly and thoroughly the entire joint area.It ensures the therapeutic heat to radiate through the effected areas and penetrate to the source of pain.Effectively promotes blood circulation, relieves pain and relaxes tense and sore muscles, improves lacking in strength at joints and increases mobility.Non-medicinal, fragrance free, without and side effect, suitable for persons who allergic to medicine.Thin and discreet patch, it dose not affect movement of joint, ideal to use anywhere.How to use:Only tear to open the sachet when you are ready to use.Take out the elasticated wrap and place it over the knee or elbow area.Tear to open the sachet by hand (do not cut) and take out heat patch.Insert