40 pack 8”x6”x6” corrugated mailing boxes specification: Size? 8”x6”x6 Material: corrugated cardboard These 8”x6”x6 cardboard shipping boxes are easy to assemble and tape. Great for mailing items for mugs, books, candles, soap, perfume, craft, screws, nuts and other retail shipping. Note: When packaging valuable fragile items, you’d better wrap them with cushioning materials such as bubble wrap carefully before putting into the boxes.