Put your brand where it will be seen regularly with this impact postcard! Nearly 200 million Americans need to safely protect their vaccination cards and show them to gain access to sporting events, concerts, and more. This full-color 6" x 4" postcard promotes your brand, along with an affixed, branded 4" x 3" holder for U.S. Government issued COVID-19 Vaccination Record Cards. It can be mailed to recipients in a clear PVC pouch. Domestic U.S. mail only. You can also use the printed piece as a branded, promotional giveaway at your next event.