A medical device that is applied directly to the neck, shoulders, lower back, stomach, etc. to provide warmth. The pleasant warmth of the steam warms the affected area deep inside and promotes blood circulation. Relieves shoulder stiffness and lower back pain. ●Maintains a comfortable temperature of approximately 40°C for 5 to 8 hours. ●Steam is gentle on the skin. Will not wet clothing. ●Thin sheet that does not show through outerwear. ●Fragrance-free, easy to use even when out and about. ●When applied to the stomach, it stimulates gastrointestinal activity. ●Effect: Heating effect. ●General medical device. 【How to use】 Remove the release paper from the sheet and apply directly to the skin (neck, shoulders, lower back, stomach, etc.) Please read the label on the individual packaging carefully before use. Seat composition material: Non-woven fabric on skin side: polypropylene; Heating element: contains iron powder.