... price Heat Pack1. We are chinese manufactory for Heat Pack. And we output to several regular markets in ... satisfication and FDA. 2. For the heat pack was apply to both young and old for keeping ... cold weather. Also, it apply to pain in neck, shoulder, waist, legs, and abdomen, dysmenorrhea, chills, etc 3 ... direct contact with skin) Also, we had foot pack, which was good for sleeping and daily healthy. ...