This panel's back plate is made of resin with gauge props made of resin bonded to it.. Photo realistic faces. They are cast from molds of real gauges. They can be mounted on any flat surface. This panel can be flush mounted. If you you do want to make a hole behind them you can light them up from behind as seen in the picture. Each gauge measures approximately 3.5" in diameter. The panel is about 13.25" in length and 6.75" in width.
*dollar not included*