Zero Ice Reusable Cubes

I put both a large bag & small bag in a 48qt coleman cooler with about 6 liter bottles of water & two of those were frozen, opened the cooler only twice in the first 12 hours & cooler was outside but out of the sun, 2nd twelve hours cooler was in the house. Opened cooler & drinks were still cool, but not as cold as I expected. (this was only 24 hours)

I am very pleased with the Zero ice cubes. They keep drinks and food cold as needed. My only downside is they do not stay frozen as long as estimated. They work great for an afternoon on the boat or beach but melt down after several hours. I don't think they would work for perishable foods for extended time periods. Overall they work for what I need them for and will continue to use them. Definitely easier to deal with then bags of ice.

Worked great! Kept cooler cold for 48 hours then we just swapped in a new bag. Had an issue with shipping with the package being damaged, no fault of Zero Ice and they send us out replacements immediately.