From the manufacturer's website:
Mueller Instant Cold Packs help relieve pain and swelling. These Instant Cold Packs are extra large, fast-acting, portable, disposable and easy to use. They contain no Ammonium Nitrate. No refrigeration is needed, it activates instantly and is not reusable.
- Mueller Instant Cold Packs help relieve pain and swelling
- No refrigeration is needed, it activates instantly and should be disposed of after use
- These Instant Cold Packs are extra large (6" x 9"), fast-acting, portable, disposable and easy to us
Warning: For single use only. Reuse after refreezing could result in frostbite. Do not apply directly to skin.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.