Pratt PRA0054 Recycled Corrugated Cardboard Single Wall Standard Flat Box with C Flute， 12" Length x 10" Width x 4" Height， (Pack of 25)</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>100 percent recycled corrugated box for packing， shipping， and storing</li><li>32 ECT grade for standard stacking performance</li><li>Flat rectangular shape fits frames， books， or other flat items</li><li>Made of single wall C flute corrugated fiberboard with standard kraft color</li><li>Shipped flat to reduce shipping costs and storage space</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41%2B4JsLqJZL.jpg' noproxy></br>