Black foot warmer(ML) by Shuai & Mei Daily Products (Qingdao) Co., Ltd.
Its specifications are as follows:
Size: 250x75mm or 230x70mm
Weight : 72g
Heating Last: 6hours,
Average Temp: 38C
Max Temp: 45C
The material of black foot warmer https://www.warmerproducer.com/a/products/foot/ includes Iron Powder, Water, Vermiculite, Activated Carbon and Salt.etc
How to use black foot warmer? The following directions can teach you
1. Open the outer package and expose the pack to air,
2. Little shake, it will be heating within several minutes, put in your pocket, then you can touch it when your hand need warm, and heating for 8 hours
3. Dispose of used pouch with regular garbage, it’s natural ingredients are environmentally safe.
Finally, you should keep it dry, put cool place and avoid direct sunlight.