Quick File Storage Boxes come with removable lids that keep files clean yet accessible. Lids have tabs that interlock with hand holes. Boxes have pre-printed panels for easy content identification. Boxes can be folded together quickly. Tape or glue not required. Manufactured from 200#/ECT-32 white corrugated. Boxes can be used to hold both legal and letter size files. Inside dimensions are 15 x 12 x 10" (Length x Width x Height).