20 Cardboard Corrugated Inserts Highest Quality and Value (12″ x 12″) Product Specifications: Dimensions: 12″ x 12″ Thickness: 1/8″ Quantity: 20 Pieces Additional Details: 125-LB Single Wall Corrugated 23-LB Edge Crush Test (ECT) Adds stiffness to protect flimsy packages from bending in the mail Great for picture backing Keeps your item flat during shipping Lightweight for cheap shipping Retail Value: $40 Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items. Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

10 Cardboard Corrugated Inserts. 23-LB Edge Crush Test (ECT). 125-LB Single Wall Corrugated. Great for picture backing.

10 Cardboard Corrugated Inserts. 23-LB Edge Crush Test (ECT). 125-LB Single Wall Corrugated. Great for picture backing.

10 Cardboard Corrugated Inserts Highest Quality and Value (12″ x 12″) Product Specifications: Dimensions: 12″ x 12″ Thickness: 1/8″ Quantity: 10 Pieces Additional Details: 200-LB Single Wall Corrugated 32-LB Edge Crush Test (ECT) Adds stiffness to protect flimsy packages from bending in the mail Great for picture backing Keeps your item flat during shipping Lightweight for cheap shipping Retail Value: $20 Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items. Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

Cardboard Corrugated Insert Highest Quality and Value (9″ x 12″) Product Specifications: Dimensions: 9″ x 12″ Thickness: 1/8″ Brand: EcoSwift Additional Details: 200-LB Single Wall Corrugated 32-LB Edge Crush Test (ECT) Adds stiffness to protect flimsy packages from bending in the mail Great for picture backing Keeps your item flat during shipping Lightweight for cheap shipping