United States Post Office Shipping Box, 12in x 12in x 5-1/2in, White

Prepare books and collectibles for shipment with this United States Post Office Shipping Box. The corrugated box is crafted to endure a variety of conditions on its way to its destination. Ideal for shipping medium-sized items. Made of corrugated cardboard to withstand rough handling. Boasts an edge crush test (ECT) rating of 32. Tested to support a weight capacity of 200 lb per square inch.