Fuel cap covers for the RV9. The 9P on the inside of the part means that it goes on the pilot side. The 9C is for the co-pilot side. The little dash show where the seal need to start and finish. The magnets are positioned so that the fuel cap covers stick together for easy storage. Made from UV resistant plastic.  You get one for the pilot side and the co-pilot side. The notch should be oriented forward for installation on the wing.