La Marzocco offers two types of grinder customization sets. The Lux-D Custom Grinder Set: Includes a hopper lid, doser cover, and grind collar peg to replace the standard black accessories that come with the Mazzer Lux-D and Mini-Doser. The Mazzer Electronic Custom Grinder Set: Each custom set of wood accessories comes with a hopper lid, and grinder adjustment collar knob. These accessories are easy to install and are a great way to improve the look and feel of your grinder. PLEASE NOTE- The wood grain and color will differ slightly from the products pictured due to the distinctiveness of natural materials. These parts are made specifically for the La Marzocco LUX D and Mazzer MINI DOSER grinders.