Bankers Box STOR/FILE Medium-Duty Storage Boxes, FastFold, String and Button, Letter, Case of 12 (00704) String & button closure keeps contents secure even if box is overturned. Fast fold quick and easy assembly. Medium-duty stacking strength for use with or without Shelving. Medium duty box with double bottom, double end and 1-1/2 side construction This box offers 30% greater stacking strength than other brands and is ideal for storage with or without shelving. Locking lift-off lid stays in place to secure box contents. Smooth rolled box edges add strength and help prevent paper cuts. Size: 10" x 12" x 24"inch Easy FastFold(TM) One Step Set-up saves assembly time.