If you're shipping important documents, photos, or artwork, these Aviditi rigid mailers are total lifesavers! The 9x11.5 inch size is perfect for standard documents and certificates without being too bulky. Made from sturdy .036 kraft chipboard, these things are seriously rigid - no more bent photos or crumpled paperwork arriving at their destination. The tab lock closure keeps everything secure during transit, and the best part? They're lightweight enough to save you money on postage compared to bulky boxes or padded envelopes. Since they're made in the USA, you know you're getting quality construction. Each pack comes with 100 mailers, which is perfect if you're running a small business, selling online, or just need reliable shipping supplies on hand. The kraft brown color looks professional and the construction feels substantial without being heavy. No need for additional stiffeners or extra packaging - these stand up on their own and protect your contents through the shipping process. Whether you're shipping wedding photos, important contracts, artwork, or certificates, these mailers give you peace of mind that your items will arrive looking perfect. The value is fantastic too - buying in bulk saves you from constantly running out when you need to ship something important. Seriously, if you hate worrying about your mail getting damaged in transit, these rigid mailers are worth every penny!