Freez Pak Ice Substitute, Reusable, 6 Pack Koolant4 inch x 8-3/4 inch x 2-1/8 inch (10.2 x 22.2 x 5.4 cm). Safe, non toxic. Grooves hug cans to keep them cooler. Place in cooler for picnics and camping. Freeze and use over and over. www.lifoam.com.