NINGWAAN 60 Pack 11x14 inch Corrugated Cardboard Sheets, Large Thickened Cardboard Sheets, Flat Cardboard Inserts Squares for Packing, Mailing, DIY

50-Pack Large Corrugated Cardboard Sheets for Mailers, 11x14 Flat Packaging Inserts Pads, Shipping, Packing, Mailing, Dividers, Crafts, DIY Art Projects Supplies (2mm Thick)

Henoyso 110 Pack Corrugated Cardboard Sheets Flat Cardboard Sheets Packaging Inserts Flat Square Inserts Flat Cardboard Squares Separators for Shipping Packing Mailing Crafts(Brown, 11 x 8.5 Inch) : Office Products

HGP 9 x 12, 100 Pack, Corrugated Cardboard Sheets Shipping Cushioning Pads 1/8 Thick : Office Products

Corrugated Cardboard Filler Insert Sheet Pads 1/8 Thick - 14 x 11 Inches for packing, mailing, and crafts - 25 Pack : Office Products

50-Pack Large Corrugated Cardboard Sheets for Mailers, 11x14 Flat Packaging Inserts Pads, Shipping, Packing, Mailing, Dividers, Crafts, DIY Art Projects Supplies (2mm Thick) : Industrial & Scientific

NINGWAAN 60 Pack 11x14 inch Corrugated Cardboard Sheets, Large Thickened Cardboard Sheets, Flat Cardboard Inserts Squares for Packing, Mailing, DIY

50-Pack Large Corrugated Cardboard Sheets, Russia

Corrugated Cardboard Filler Insert Sheet Pads 1/8 Thick - 14 x 11 Inches for packing, mailing, and crafts - 25 Pack : Office Products

200 Pack 5x7 Corrugated Cardboard Sheets for Mailers, Flat Packaging Inserts for Shipping, Mailing, Crafts, 2mm Thick : Industrial & Scientific

The corrugated cardboard sheets can be inserted into a mailer to protect against essential documents getting bent and damaged in the mail. The cardboard rectangles can also be used as a backing for craft projects or make your photo frames! You can also use them to make signs with markers or paint. Our brown cardboard dividers for boxes with side funneling each measure 6 x 9 inches and are 2-millimeter thick.

50 Pack Corrugated Cardboard Sheets for Mailers Flat Packaging Insert