Brand from Japan: Kobayashi. The heat of about 52 degrees can relieve shoulder pain.The 26cm wide size relieves stiffness in shoulders.The temperature lasts for 8 hours.Suitable for shoulder pain caused by fatigue, the effect will be visible immediately.Suitable for people who work in cold environments and have shoulder discomfort.How to use:Separate a layer of clothing and stick it on the shoulders.Do not stick it directly on the skin to avoid burning the skin due to excessive temperature of the hot compress.Disposable items, cannot be used while sleeping or exercising.