These white postcard envelopes are a must-have for anyone looking for a reliable packaging solution. Made to fit postcards with a size of 5 1/2″ x 8 1/8″, these envelopes are designed to keep your items safe and secure during shipping. With a pack of 10, you can easily send out multiple postcards without having to worry about running out of envelopes. These envelopes are perfect for a variety of uses and are ideal for business and industrial purposes. They are categorized under Other Envelopes & Mailers, Envelopes & Mailers, Packing & Shipping, Material Handling, and Business & Industrial. Whether you’re sending out postcards to friends and family or shipping important documents, these envelopes are the perfect solution.