IDEAL, Grommet, Buchanan, Color: Black, Size: 43/64 IN Outer Diameter, 3/8 IN Inner Diameter, 0.280 IN Thickness, Material: PVC, Material Type: Flexible, Durometer: 60, Dimension B: 0.490 IN, Dimension E: 1/16 IN, Hole Diameter: 3/8 IN