Engineered for maximum comfort and reduced wrist strain. Assembles instantly. Just push the corners together and the box is ready to use. Heavy-duty, double-end, double-side and double-bottom construction for stacking, storage and transport you can trust. Deep, locking, lift-off lid with zip tie secure closure (ties not included). Reinforced tear-resistant hand holes. Box Type: Presto? Instant Assembly; Material(s): Corrugated; Strength: Heavy-Duty; File Size Format: Letter/Legal.