This pack of 75 Tough Polly mailers is perfect for anyone in need of durable and reliable mailing materials. Measuring at 10×12 inches, these poly mailers are designed to expand, allowing you to fit your items with ease. These mailers are great for a variety of uses, from personal mailings to business shipments. With their tough exterior, these mailers provide an extra layer of protection for your items during transit. The self-sealing design ensures that your mail stays secure and safe during delivery. These mailers are an excellent choice for anyone who wants to ensure that their items arrive at their destination in the same condition as when they were sent.