Thermos 3 piece boxed reusable ice mats includes two 12 cube mats and one 36 cube mats. The Thermos ice Mat is perfect for use with lunch Coolers to keep contents cold. Multiple layers of polyethylene are heat-sealed together to create a strong, insulating bond and each cube contains clear, non-staining, purified water. The silver reflective backing provides an extra layer of insulation increasing cold retention. You can store the Mat in your freezer until you are ready to use and it will remain flexible when frozen. The cube Mat is food safe, reusable and durable.
This product has no expiration date or the manufacturer has not provided an expiration date.