18 x 18 x 28" Dish Pack Boxes. These super heavy-duty packing boxes are manufactured from 350# doublewall corrugated. Optional partition kit includes: 3 sets of partitions and 2 layer pads (sold separately PARTKIT). Cartons are printed with fragile warning and this side up arrows and feature a convenient write on destination panel for deliver to instructions. Boxes feature hinged hand holes that makes them easier to carry. 5.2 cubic foot capacity. Cartons are sold in bundle quantities and ship flat to save on storage space and shipping. Proudly made in the USA!