Instant Cold Compress, Boxed 4"x5" - 50 Per Case

4" x 5" Urgent First Aid™ instant cold pack, boxed, 50 per case Our 4" x 5" Instant Cold Compress temporarily relieves minor pain and swelling for sprains, strains, aches, bruising, and sore joints. The Urgent First Aid™ instant cold packs are conveniently disposable with no pre-chilling required for quick, effective relief. No messy ice bags needed. Just shake, squeeze, shake again and apply for instant cool comfort and treatment of injuries. This cold pack conforms with the specific ANSI Z308.1-2015 requirements for cold packs in first aid supply uses: "Each cold pack shall be at least 4 x 5 in. (10 x 12.5 cm) in size and shall reach a temperature between 20 - 40&degF (-6 - 4&degC) within 10 seconds of activation and shall maintain this temperature for a period of at least 10 minutes. Cold packs shall activate under normal hand pressure and shall not leak under normal conditions of use." Store in a cool, dry place. May be harmful if swallowed. We prefer the urea and water cold packs to the older ammonium nitrate as these are non-hazardous, and can be express shipped when necessary (although shipping for any cases of cold packs is expensive, as they have high liquid content, so it becomes comparable to shipping a box of water!) Bilingual Label (English on one side, Spanish on other)