Compared to chipboard, the cardboard inserts are pretty lightweight so they don't make your package too heavy.
75 Pack Corrugated Cardboard Sleeves for Sports Cards
★RIGID & LIGHTWEIGHT★ These cardboard sheets are actually stiff and rigid, adding a good support for delivering for shipping Trading Cards, Sports
96 Packs Cardboard Sleeves for Sports Card Protectors, 3 x 4.5 Corrugated Cardboard Sheets for Trading Card Folders Mail Shipping Stiffeners
50 Pack Corrugated Cardboard Sheets Flat Cardboard
200 Packs Corrugated Cardboard Sheets, Premium 3.5x4.5
Hobby Armor Trading Card Shipping Protectors 3.5 x 4.5 - Half
Corrugated Cardboard Sheets - 6x9 Inches - Pack of UK
Ideal Package to Meet Your Needs: you will receive 200 pieces of flat cardboard sheets and 200 pieces of envelopes, the quantity is enough to meet
200 Sets Cardboard Sleeves Flat Vending Sports Card Folders Mail Shipping Stiffeners Insert Corrugated Thick Cardboard Folders with 200 Envelopes for
200 Pack 5x7 Corrugated Cardboard Sheets for Mailers
Corrugated Cardboard Sheets and Pads
200 Packs 3.5x4.5 Inch Corrugated Cardboard Sheets
Corrugated Cardboard Sheets and Pads
Hobby Armor Trading Card Shipping Protectors 3.5 x 4.5 - Half
★RIGID AND LIGHTWEIGHT★ These cardboard sheets are actually sturdy and rigid which are PERFECT for shipping cards, postcards, art prints and other
200 Packs 3.5x4.5 Inch Corrugated Cardboard Sheets, Premium White Corrugated Cardboard Inserts Bulk Flat for Sports Card Protectors, Trading Card
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.
Juvale 200 Pack 5x7 Corrugated Cardboard Sheets for Mailers, Flat Packaging Inserts for Shipping, Mailing, Crafts, 2mm Thick
3000 3x4. cardboard Shipping protectors for Trading Cards MADE USA