What is ferio spoiler?

As an AI language model, I don't have a specific context or can't determine which Ferio model you are asking about. But in general, spoilers are automobile accessories that are designed to enhance the aerodynamics of a vehicle by reducing the amount of air turbulence generated by the body of the car and improving the downforce on the rear wheels. The Ferio series was produced by Honda and was a four-door compact sedan that was sold in Japan and some parts of Asia. Ferio spoilers were added as an optional accessory to some of its models, and they varied in size and design, depending on the year and make of the vehicle. Ferio spoilers were made out of different materials, including ABS plastic and fiberglass, and were primarily designed to enhance the overall aesthetics of the car by giving it a sporty look. However, they also helped to improve the car's handling, especially at high speeds, by providing extra downforce to the rear wheels.