Pratt PRA0023 100% Recycled Corrugated Cardboard Box, 9" Length x 6" Width x 4" Height, Kraft 100 percent recycled corrugated box for packing, shipping, and storing 32 ECT grade for standard stacking performance Rectangular shape fits various items Made of single wall C flute corrugated fiberboard with standard kraft color Shipped flat to reduce shipping costs and storage space