![Amazon.com: 75 Pack Corrugated Cardboard Sleeves for Sports Cards, Trading Card Shipping Supplies, Flat Vending 3 x 4.5" : Industrial & Scientific Amazon.com: 75 Pack Corrugated Cardboard Sleeves for Sports Cards, Trading Card Shipping Supplies, Flat Vending 3 x 4.5" : Industrial & Scientific](https://m.media-amazon.com/images/I/711RhmLayxL.jpg)
Amazon.com: 75 Pack Corrugated Cardboard Sleeves for Sports Cards, Trading Card Shipping Supplies, Flat Vending 3 x 4.5" : Industrial & Scientific
![Buy Hobby Armor Trading Card Shipping Protectors 3.5" x 4.5" - Premium Cardboard Inserts Card Mailers - Precut Cardboard Sleeves for Trading Card Packaging - Cardboard Flats for Card Breakers - Box Buy Hobby Armor Trading Card Shipping Protectors 3.5" x 4.5" - Premium Cardboard Inserts Card Mailers - Precut Cardboard Sleeves for Trading Card Packaging - Cardboard Flats for Card Breakers - Box](https://m.media-amazon.com/images/I/81v+GIdPY+L.jpg)
Buy Hobby Armor Trading Card Shipping Protectors 3.5" x 4.5" - Premium Cardboard Inserts Card Mailers - Precut Cardboard Sleeves for Trading Card Packaging - Cardboard Flats for Card Breakers - Box
![Amazon.com: 50 Cardboard Sleeves Folded Flat Vending 3" x 4.5" Sports Card Folders Mail Shipping Stiffeners Insert : Everything Else Amazon.com: 50 Cardboard Sleeves Folded Flat Vending 3" x 4.5" Sports Card Folders Mail Shipping Stiffeners Insert : Everything Else](https://images-na.ssl-images-amazon.com/images/I/71o0Kp7Q8sL._AC_UL900_SR615,900_.jpg)