The B0941 conductive 3 Level document tray set is made of ESD Safe ABS plastic. Holds standard 8.5” x 11” sheets and is slotted for easier removal/insertion of documents. The set comes with 3 individual document trays (13” L x 10” W x 3.5“ H) that can be stacked or used by themselves. Extender poles (3” metal poles) are also included to provide more space in between trays for more flexibility. Each tray features a bright ESD logo for easy identification as a safe product for cleanrooms and other ESD safe environments.