A two-piece grommet assembly is placed on opposite sides of an opening in a panel and secured thereto. The grommet pieces can be identical in construction. One piece of the grommet assembly is placed on a first side of the panel opening and the second piece of the grommet assembly is placed on the opposite side of the opening. They are applied in mirror orientation and thus “sandwich” the panel opening. The pair of grommets are secured within the opening and to each other with one or more grommet assembly cable ties. Each grommet has one or more saddle surfaces to support and retain one or more objects that pass through the grommet assembly. Each object may be secured to at least one grommet piece with a cable tie or similar device. A single piece grommet is also disclosed herein.