Custom Copper Rivet Gauge Panel! It is CNC machined from 3/16" Brushed Aluminum. Opening inside diameter is 3 1/8" . Overall size 4"x 4" This would look amazing on any Hot Rod, or Gasser flat dash. It is brushed so it doesn't have that billet look. It is held on by the gauges themselves!Any questions please email. This includes rivets loose, not fastened. You can rivet right to the dash or not. Gauge NOT Included.