Maximum security box with string and button closure keeps contents secure, even if box is overturned. Up to 50% stronger than other string and button boxes for stacking without shelving. FastFold? quick and easy assembly. Reinforced plastic handles make it easy to pull box off shelving. Stock up and save! Box Type: Storage; Material(s): 1 Ply Side; 2 Ply Bottom; 2 Ply End; Strength: Heavy-Duty; File Size Format: Legal.