12x12 Corrugated Cardboard Sheets 24 Pack Bulk Flat Square Inserts for Packing, Mailing, Crafts

Put a sheet in a mailer to protect a piece of paper so it does not get bent in the mail. Use it as a backing for craft projects, or even make your own photo frames! You can also use them to make signs with markers or paint. Each piece of kraft brown cardboard measures 12 x 12 inches.

Corrugated Cardboard Sheets, HAKZEON 30pcs 12 x 12 x 1/4 inch Corrugated Cardboard Filler Insert Sheet Pads, Extra Thick High Strength Cardboard

PHAREGE 20 Pack Yellow 12x9x4 Shipping Boxes, Corrugated Cardboard Boxes for Small Business for Packaging

12x12 Corrugated Cardboard Sheets 24 Pack Bulk Flat Square Inserts

Belle Vous Brown A4 Corrugated Packing Cardboard Sheets (24 Pack

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MUKLEI 60 Pack Corrugated Cardboard Sheets 12 x 12 x 1/8 Corrugated Cardboard Filler Inserts Flat Kraft Cardboard Sheets for Shipping, Mailing

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Premium Corrugated Cardboard Sheets 12 X 12 - 100 per Bundle - Flat Packaging Pads - Kraft Double Face - Quantity 100 Pack - for Packing, Mailing, Inserts or Krafts (12x12) : Office Products

25 12x12 Cardboard Corrugated Pads Inserts Filler Sheet 12 x 12

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Corrugated Cardboard Sheets - B Flute (2mm thick) - Brown on Both

Corrugated Cardboard Sheets 4mm - 3/16 Thick 12x12- 5 Pack. Filler Insert Pads, Brown Frame Backing Rectangular & Square Flat Boards for Art&Crafts, DIY Projects, Mailing,Dividers & Packaging

Corrugated Cardboard Filler Insert Sheet Pads 1/8 Thick - 12 x 9