These attractive R-Kive coloured storage boxes are maximum strength, with improved construction and graphics. They have a double wall construction on the base and end panels and triple wall on the sides and will happily accommodate A4 documents, ring binders, lever arch files and transfer files. The ‘fastfold’ construction allows for quick and easy assembly and the new, deeper lids lock into place for secure closure. There are different labelling options on the front and back and the boxes are 100% recycled.