Panduit ER1.25-E4-X Elastic Harness Board Retainers aid in maintaining a uniform height for the harness. Cable bundles are formed as cable bundles are inserted, and once they are made, they can easily be removed. The Elastic Retainer is just part of the harness board accessories Panduit offers, enabling faster routing and forming of wires in harness fabrication. For use in indoor environments and with two #6 (M3) screws. Made of Nylon 6.6, are black in color and come in packages of 10.