Top flaps on these boxes overlap and are closed by wrapping attached heavy-duty string around plastic eyelets.
Boxes feature a write on area on two sides for labeling with content information.
String & button closure keeps contents secure even if box is overturned.
FSB600 check size box is manufactured from 200# white corrugated.
FSB640 letter and FSB680 legal size boxes are manufactured from 250# white corrugated.
Sold in cases quantities.