These antennas fit vehicles such as the Subaru WRX/STI, Scion XB/XD, and other models with this newer style rear antenna mount. The all CNC machined aluminum antenna is anodized black with the Agency Power name laser engraved at the base. A new steel set screw is provided to allow easy replacement of the factory unit. The antenna is approximately 3 inches in length and ¼ inch in diameter. The bottom is beveled for a flush fit. Long term testing has shown no effects with the vehicles radio reception from the shorter length and aluminum material