All boxes are made of standard (32 ECT) brown corrugated board.The same ones that profesional movers use.We sell new unused moving boxes.All boxes are printed for identification. Small Book Moving & Storage Box 16X12X12 (1.5) Cu.Ft. 25 Pcs. per bundle Medium Moving & Storage Box 18X16X16 (3.0) Cu.Ft. 20 pcs per bundle Large Moving & Storage Box 18X18X24 (4.5) Cu.Ft. 15 Pcs per bundle Extra Large Moving & Storage Box 24X18X24 (6.0) Cu.Ft. 10 Pcs per bundle