Exacompta COMBO MIDI A4 Plastic Letter Tray Keep your paperwork tidy and organised with this Blue Angel certified letter tray from Exacompta Benefiting from a 25 year warranty, these letter trays are both durable and stable. Stackable either vertically or in steps and are compatible with various letter tray models. Suitable for A4/A4+ documents and includes label holders Exacompta spacers (Product code 12714D) can be used to increase the generous 500 sheet capacity if required.