Never let mail or important internal documents go astray. There's no need to leave mail on people's desks, just slot it into the letter tray so everyone can have a tidy desk. These black letter trays are part of the Avery DTR ECO Desktop Range, made from a sturdy black 100% recycled plastic. With their versatile stacking system using risers (sold separately), they also stack in reverse at 90? making them a perfect fit for your workspace. Ideal for organising your paperwork and files.