4" Corrugated Cardboard Boxes Shipping Supplies Mailing Moving - Choose 9 Sizes

200-LB Single Wall Corrugated with 23-LB Edge Crush Test (ECT). 4" x 4" x 48". 4" x 4" x 20". 4" x 4" x 18". 4" x 4" x 12". 4" x 4" x 10". 4" x 4" x 8". 4" x 4" x 6".

eBay