The flexible, reusable sheet of ice! Easy to use, just add water and freeze. Wraps around your lunch, a 6-pack or sore muscles. These hi-tech dessicant filled bags are non-toxic and can be used hot or cold. To use as a hot pad, microwave the swollen sheet for 1 minute. Contains 6 sheets measuring 11” x 18.5” with 18 – 3” squares in each sheet! Available in mail order package only.