This is the “FALLOUT” shift knob. Cast in fine pewter then polished to a high shine it uses a 16mm X 1.5 aluminum insert that can be fitted with different size adapters. It is approximately 2 1/4 inches tall, approximately 2 1/4 inches wide, and 3 1/2 long. Weighing approximately 11 ounces and built strong it can be used on a daily driver. Please use the “Shift Knob Thread Size” link on the left to find your autos adapter size.