Sending out catalogs, reports, invoices, or anything you don’t want prying eyes to see? This pack of 200 security envelopes is a total workhorse. They’re a classic 10x13 inch size, which fits letter-sized documents perfectly – you can stuff up to 60 sheets in there without worrying about busting the seam. The inside is printed with a security tint pattern (those wavy lines) that makes the contents unreadable against light, so your sensitive info stays private. They’re made from sturdy 100g offset paper, and the flap has a self-seal adhesive strip. No licking, no glue sticks, no tape – just peel and press. Super convenient when you’re processing a bunch of mail at once. Great for businesses sending statements, tax documents, legal papers, or even for personal use like storing important records. The plain white exterior is perfect for adding your own labels or postage. A reliable, no-fuss supply for any office or home mailing needs.