MRE Heaters are great for heating your MRE meals while you are out camping or in the field. Each thermo pack will heat MRE pouches at 140 degrees Fahrenheit. Just add water, close the bag, and in 12 minutes you have got a steaming hot meal. Use once and throw away. These don't take up a lot of space so if you want to carry a light load they are a great alternative to a stove or pan. 12 heaters per bundle. 1 bundle for $5.99 OR BUY A CASE OF 12 BUNDLES OF 12 HEATERS for $49.99 Just add 12 to your cart to receive the bulk discount.