Pinit Shipping Box 4 x 4 x 6". Made from 200# test, 32-ECT, Kraft corrugated cardboard. SKU: PN446 (0)No Reviews yet Add to Shopping Cart Details Corrugated Shipping Boxes 4 x 4 x 6" Made from 200# test, 32-ECT, Kraft corrugated cardboard. Details Back DetailsCorrugated Shipping Boxes 4 x 4 x 6"Made from 200# test, 32-ECT, Kraft corrugated cardboard. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review