6 x 9 Booklet Envelopes - 24lb. Brown Kraft (1000 Qty) | Perfect for mailing Documents, Catalogs, Direct Mail, Promotional Material, Brochures and More| 26949-1M Size: 6 x 9 Booklet Envelopes / 6 in. x 9 in. / 6" x 9" / 152mm x 229mm Quantity: Pack of 1000 Color: 24lb. Brown Kraft USES: Catalogs, Annual Reports, Brochures, Magazines, Invitations and so much more! Applications: Business Mailings, Direct Mail, Corporate Mailings, Financial Mailings, Personal Mail. Printable on off-set printing presses and some home printers.