1,heat method:instant 2,CE,ISO and SGS has passed 3,duration:12 hours 4,environmental protection 5,warm uterus paste

Use area:Designed for fishmen,golfers, skiers or people who work or play in the cold for long hoursProduct features : 1. It can keep your warm fast after you use it. 2.  It be heating for about 8 hours . 3.  the average is 43°C, the max is 47°C 4. It cannot incur any pollution of gases and very environment-friendly.

Directions: 1. Open the outer package  and peel off the paper strip. 2. Stick it on your back or your waist or somewhere you want. Shelf Life: 3years Storage: Keep in dry, cool place and avoid direct sunlight  1. All natural ingredients 2.Air Activated3. No batteries, no microwaves, no fuels

size	130*95mm
net weight	40 g
packing	300 pcs/carton
heating duration	12 hours

The Shape, size, and heating time, highest temperature and average temperature can producted all according to your requirements.