Avery DTR Eco Wide-Entry Tray Sets feature three stackable letter trays and a lid. Each set is self -stackable or can be stacked using risers (sold separately), so that you can extend the amount of storage space between each tray. Because the trays are wider than they are deep, they fit neatly on top of desks or on shelves.
The lid is removable, so you can add more trays should you need to. Equally, the lid is sturdy enough should you want to stack other things on top. The black coloured tray is made from 100% recycled plastic.