Our heat patch can provide 8-hours' warm at least and relieve muscular and joint pains and aches, which caused by strains, sprains, rheumatism, scapulohumeral periarthritis, chronic neck or back stiffness, etc. It can bring stimulation at different acupoints.
The heat patch is disposable and portable. It will gradually get warm and provide long-lasting heat. Do not microwave or reheat which might be on fire. The standard square heat patch can be used at any place desired.