It has the functions of physical cold compress therapy, pain relief, analgesia and swelling, and has an auxiliary therapeutic effect on relieving pain caused by osteoarthritis, rheumatoid arthritis, muscle pain, joint pain and sprain. ******************************************************* * Ergonomic design: fits the body according to the shape of the abdomen, neck and shoulder joints, more fit, and will not fall during exercise * Medical grade non-woven fabric: long heat generation, stable heat, no leakage of powder, and a greater reduction of allergies. * Germany imported Henkel glue: sticky and does not hurt clothing * Mature technology, medical quality, fever for more than 8 hours.