![](https://trycold.com/img/usps-flat-rate-foil-liner.jpg)
A/B Box Liners. Our foil box liners for USPS Flat-Rate Boxes come as a kit to make 25 thermally shielded shipping containers. The kit contains 25 pairs of foil designed to fit USPS Flat-Rate boxes.
Simply pickup boxes from USPS.com and use our custom-cut foil to keep your perishables cool when in transit.
© Copyright 2010-2024 Tryco, Inc. - Farmington Hills, Michigan
![](https://trycold.com/style/made-in-usa.gif)
![](https://trycold.com/style/made-in-michigan.gif)