Packed warmer by Shuai & Mei Daily Products (Qingdao) Co., Ltd.
Its specifications are as follows:
Heating Last: 6+hours,
Average Temp: 40C
Max Temp: 45C
The material of adhesive hand warmer https://www.warmerproducer.com/a/products/handwarmer/ includes Iron Powder, Water, Vermiculite, Activated Carbon and Salt.etc
How to use packed 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 8hours
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.