The Partners Brand 999Wkraft corrugated mailers is ideal to ship across light-weight fragile items safely. Featuring a crush-resistant design, it offers extra protection from damage with its double wall construction. It also eliminates pa per cuts as it comes with wave-rule edge. Its square shape ensures that there is more space to store your items. This mailer comes in a size of 9"H 9"W 9"D. It can be shipped and stored flat to save space. Corrugated Boxes are manufactured from 200lb /ECT 32corrugated. Dimensions: 09"x9"x9". Capacity (Cu. Ft. ): 0. 42. Manufactured from 200lb /ECT 32corrugated. 25/Bundle. Product Type: Corrugated Mailers. White colored kraft corrugated construction. The Partners Brand 999Wkraft corrugated mailers provides a smart way to ship and store all your important documents in the easiest way possible.