This tap handle display stand crafted from a 1940's radial engine piston called the WWII Jacobs R-755. The piston was used to power airplanes such as the Beechcraft Staggerwing, Boeing Stearman 75, and Avro Anson. Buffed to a mirror-like luster, the piston measures 5" in diameter and 3" in height. This display stand can fit all 3/8 -16 thread tap handles. It also comes with all the hardware needed for displaying your tap handle. It is the perfect display stand for your bar's beer-of-the-day tap handle. The product package does not include tap handles.