Serpent Natrix 748 carbon inner rim covers

From Serpent for the new Natrix 748 are these carbon inner rim covers, which are mounted on the uprights and or steering blocks of the car and depending on the track and grip create more steering and overall a more stable car. Supplied with the necessary hardware the Natrix 748 steering blocks and uprights are prepared to use these already. Also 747 users may use them but it requires that the steering blocks and uprights are mounted to the car.

Source: Serpent [serpent.com]