Super strong boxes can be stacked up to six high (except String & button file storage boxes)

• Heavy duty, triple end, double side, double bottom construction stacks up stronger and withstands frequent handling
• FastFold™ quick and easy assembly
• Reinforced tear-resistant hand holes make box comfortable to carry
• Deep, locking lift-off lid stays in place for secure file storage
• Smooth rolled edges add strength and prevent paper cuts
• Boxes feature a write on area on two sides for labeling with content information.
• Sold in case quantities.