Onyx Mail Sorter offers a sturdy solution to managing your heavy mail influx. It features 20 oversized letter compartments to accommodate most mail. Each compartment measures 11" wide x 12-1/2" deep x 3-3/4" high and holds 5 lb. The sorter offers a total capacity of 500 sheets. You can make sorting mail even quicker by using the included 20 labels and plastic label holders. If you need more space, these sorters can stack up to two high. Mail sorter is made of sturdy steel mesh with durable, black powder-coat finish. Its 56-3/4" width allows it to fit on Safco's mailroom tables - models 7749 and 7750 (sold separately).