WG4 wood grommets from Mockett are crafted with the smoothest finish and the most organic feel, the company says. WG4 incorporates a natural element into designs with one of four wood finishes in oak, maple, cherry and beech. It is durable and easy to use and can be installed in any 3-5/32-in. cutout. Once installed, the liner sits 1/8 in. above the surface, creating a gently curved edge for a softened appearance.