Freez Pak The Siberian Reusable Ice Pack
8 - 7/8 inches x 7-1/2 inches x 5/8 inches (22.5 x 19.1 x 1.6 cm). Just freeze and use over and over. Colder than ice. Long lasting. Safe, non-toxic. Leak proof bag. Helpful Hints: pre-cooled food will stay colder longer with Freez Pak. Stacked Freez Paks keep food cold the longest. A small chest, fully packed, will stay cooler longer than a larger, partially loaded chest. www.lifoam.com.