Amazon.com: Aviditi Brown Kraft Literature Mailing Boxes, 16 x 16 x 2 Inches, Pack of 50, Crush-Proof, for Shipping, Mailing and Storing : Office Products
9" x 6 1/4" x 4" Kraft Deluxe Literature Mailers 50/Bundle
Kraft Literature Mailers - Mid Atlantic Packaging
Literature Mailers, Tab Locking, White, 12 x 10 x 4" for $2.48 Online | The Packaging Company