Provide enhanced protection to your goods and belongings by storing them in the Partners Brand 1255 brown long corrugated boxes. It is designed using corrugated cardboard that is known to keep the goods and equipment protected from external dam age. Its rectangle shape gives you more room to store your items. This mailer comes in a size of 5"H 12"W 5"D. It can be shipped and stored flat to save space. Brown coloredcorrugated construction. Dimensions: 5"H 12"W 5"D. Capacity: 0. 173 cu. ft. Pack Size: 25/Bundle. The Partners Brand 1255 brown long corrugated boxes offers enhanced protection from external damage, making it an ideal choice for shipping.