1.57" (40mm) Metal Desk Grommet (Matte Nickel) This order is for Matte Nickel | 1 Piece | Smaller Opening READ ALL DIMENSIONS! - 1.81" total diameter; 1.53" (40mm) hole diameter, sizes are approximate due to finishes Easy installation: Press Fit or Glue Metal (zinc die-cast) is more durable and has a 1/2" deep base. Fits most workstation applications Beautiful metal grommets will provide a more sophisticated look to your workstation