From family pictures and artistic portraits to interoffice mail and international shipping, never settle for anything but the sturdiest, most resilient envelopes around. These classic 9" x 12" Clasp Envelopes by Check O Matic are a powerful solution for a variety of paper mailing and storage tasks. Featuring reusable clasp-style prongs, reinforced eyelets and self seal gummed flap closures, our Kraft classics boast an impressive paper weight of 28 lbs, giving them the superior strength of comparable cardboard products. They're also generously sized for sending catalogs, magazines, mailers, large invitations, flyers and more. For first-class performance from the courier to the filing cabinet, add a pack of Check O Matic Clasp Envelopes to your cart today!

Reusable Convenience

Stop spending countless dollars on your correspondence. These ideally sized 9"x12" envelopes can be recycled for everything from marketing magazines and legal letters to school storage and interoffice mail.

Heavy Duty Construction

Quality Kraft paper ensures each envelope won't rip, puncture or fade with repeated use. Their ample blank space and natural brown color accommodate both written and printed designs, so feel free to get fancy!

Extra Strong Adhesive

Convenient clasp fasteners easily lock contents inside for swift sending. You'll also enjoy additional backup bonding thanks to the gummed flap's superior stick quality.

Open Ended Design

Unlike booklet style envelopes, these prove remarkably versatile for everything that's oversized. Stuff large documents, heavy catalogs and stamp sheets inside with ease.