Product Catalog: Herman Miller Compatible Parts: HM Accessories: Grommets Products Grommet, 2 x 4 oval shaped, BK-BlackU.0031.01.BK (Uni-Source Office Furniture Parts) List Price: $7.00/Each View Details Grommet, 50mm Round, BK-BlackU.0031.02.BK (Uni-Source Office Furniture Parts) List Price: $3.00/Each View Details