9 by 12 envelope

JAM Paper 9" x 13" Plastic Expanding File Folder 13 Pocket - Letter Size

UOFFICE Pack of 25 Corrugated Boxes 12" x 9" x 9" - Shipping Boxes

Fosmon #0 Colored PINK Poly Bubble Mailer 6.5" x 10", Padded Shipping Envelopes, 6.5 x 9" Usable size - 10 Pack

Avery Printable Note Cards with Envelopes, 4.25" x 5.5", Textured White, 50 Blank Note Cards for Inkjet Printers (3379)

Paper Junkie 50 Pack Black Envelopes - Bulk Black 5.25x7.25 Envelopes for Invitations, Wedding, Graduation, (A7, Square Flap)

Paper Junkie 100 Pack Gold Money Envelopes for Cash Gifts, Fancy Decorative Design for Birthday, Graduations, Weddings (6.7 x 3.3 In)

JAM Paper 9 3/4'' x 13'' Plastic Envelopes with 2 5/8" Expansion, Elastic Closure, Letter Booklet - Orange: Large File Binder

Storied Home Red Embossed Tin "Post" Letter Box

40"x36" TV Moving Box - Target

Electric Letter Envelope Opener, Battery Operated - Letter Opener Envelope Slitter Portable & Safe Blade Design Mail Opener - Enday

JAM PAPER #10 Business Stationery Set - 4 1/8 x 9 1/2 Envelopes & Matching Letter Paper - Baby Pink Pastel - 50/Pack

96 Sheets Vintage Style Lined Stationery Paper for Writing Letters, Scrapbooking

UBMOVE 7" x 11-7/8" Foam Pouches for Glasses (25 Pack) Protect Dishes

JAM Paper Brown Kraft Paper Bag Envelopes 50pk

Fosmon #0 Colored PINK Poly Bubble Mailer 6.5" x 10", Padded Shipping Envelopes, 6.5 x 9" Usable size - 100 Pack

JAM Paper 5 1/2'' x 7 1/2'' 12pk Plastic Envelopes with Hook & Loop Closure, 1" Expansion, Index Booklet - Clear

JAM Paper 9 3/4'' x 13'' 6pk Plastic Envelopes with Hook & Loop Closure, 1" Expansion, Letter Booklet - Multicolor

JAM Paper Brite Hue A9 Envelopes 5 3/4 X 8 3/4 50 per pack Red: Invitation Envelopes, Gummed Flap, Recycled Content

Fosmon 8.5 x 12 - #2 Gift Wrap Birthday Holiday Poly Bubble Mailer, Lightweight Water/Dust/Shock/Tear Resistant Padded Shipping Envelopes

JAM PAPER #10 Business Colored Envelopes - 4 1/8 x 9 1/2 - Blue Recycled - 100/Pack

JAM PAPER #10 Business Colored Envelopes - 4 1/8 x 9 1/2 - Ultra Lime Green - 100/Pack

JAM Paper 50pk Brite Hue A7 Envelopes 5.25" x 7.25"

JAM Paper 9 3/4'' x 13'' 12pk Plastic 3 Pocket Envelopes with Hook & Loop Closure, Letter Booklet - Clear: Filing Accessories

JAM Paper 50pk Brite Hue 4 bar A1 Envelopes 3.625" x 5.125"