Ice Pack Compatible With Injuries, Hot & Cold Therapy, Reusable Ice Bags, RefillabFast pain relief on your headaches, muscle spasm, toothaches, menstrual pain, arthritis, migraines, joint pains, postoperative recovery, swelling, sores, and all kinds of sports injuries with these bags.^Suggest use 1/3 Ice cube and 1/3 Ice cube as cold bag, and 60 C (140 F) hot water as hot bag. The Ice bag could last cold for at least 4 hours, if you add alcohol with Ice cube, more cool time is served.^3 different sized reusable ice bags (11", 9", 6") for one great price. 6" for Children/ small part of body (Ankle, Elbow etc.), 9" for Teenagers and Adult / middle part of Body( Teeth, Knees, Head etc.) , while 11" for Adults big part of body, such as back, shoulder etc. Very useful for fast pain relief and precise treatment.^Quality is strictly ensured for no leaking by passing the life test of bag, our ice bags keep our injured area completely dry so that the healing process goes smoothly and comfortably.^The big mouth design makes very easy to pour in Ice cube and cold/ hot water in.^