Grommet - a round insert that can be dropped into a hole cut into an access floor panel. Used to protect the wiring insulation and the technician’s hand from being cut by sharp edges created when a panel is cut, it provides a pathway from beneath the access floor to allow for wiring equipment. Provided with a cover to prevent debris from falling through to the subfloor cavity. Typically black in color, available in several diameters ranging from 1.78" to 8". Sometimes called holios, sleeves, ports, trim, flange, and round molding.
The split grommets allow product installation or removal without disturbing existing cables.