9x12 Catalog Mailing Envelopes - 100 Count, Self Seal Stay Flat Brown Kraft Envelopes, Heavy Duty Shipping Mailers for Documents, Photos & Letters, Peel & Seal Closure

Super Strong Self-Seal Closure: Forget messy glue or licking envelopes. Our 9x12 mailers feature a premium Peel & Seal adhesive strip that creates a permanent, tamper-evident seal. Simply peel, press, and your documents stay securely inside until they reach their destination.

• Heavy-Duty 28lb Brown Kraft Paper: Crafted from high-quality 28lb (105gsm) thick Kraft stock, these envelopes offer superior protection against tearing and puncturing. The opaque brown finish ensures complete privacy, keeping your sensitive documents invisible during transit.
• Perfect Size for Standard Documents: The 9 x 12 inch flat design is specifically engineered to hold standard 8.5 x 11 letter-size papers, catalogs, manuscripts, or photos without the need for folding. Maintain a professional, crisp look for all your business mailings.
• Printer & Stamp Friendly: The smooth, smudge-resistant surface of our Kraft paper is compatible with both inkjet and laser printers. Whether you are printing professional logos or handwriting addresses, the ink stays sharp and clear without bleeding or smearing.