Ultimate Office Tierdrop Desktop Organizer. 12-Compartment High Capacity Mail, Classroom and Literature Sorter, Features Extra High Slots for Bulky Packages & Supplies. Add-On Tiers for Easy ExpansionFeatures TIERDROP HIGH CAPACITY COMPARTMENTS Perfect for storing and organizing bulky items, packages and supplies. Each compartment measures 9 1 16w x 5"h x 12 3 4"d. Compartments include clear label holders and labels for neat and clean identification. NO TOOL ASSEMBLY Simple "no tool" construction assembles in seconds. 12 compartment unit measures 28 1 2"w x 22 1 2"h x 13"d. THE STRENGTH OF STEEL AT A FRACTION OF THE COST Precision molded in