Review on ❄️ Polar Tech Re-Freez R-Brix Refrigerant: Optimal Length for Lab & Scientific Products by John Roberts

I live in Alaska and wanted to ship fresh salmon to a family member who lives in a small town on the other side of the United States. Shipping is already very expensive, I didn't want to risk the extra cost of handling dry ice. I chose these ice packs based on the reviews and the fact that they always give us some sort of option when buying frozen items online. When I went to pay for overnight delivery, to my dismay the post office informed me that there was no overnight delivery to this small town and it would take 4 days. I took a chance and sent it anyway; The fish arrived not completely frozen but still very cold. Will definitely be using again in the future.