KEYS RACING STEERING uses all types of high quality cowhide leather, we prepare a backskin type and leather type depending on your application and preference. For competition-oriented drivers, we recommend a backskin type with a strong grip and a beautiful leather leather cover for streets. The spokes and grips are as strong as the flat type, but the depth is between flat and deep. The flat type has a center of the grip to the boss surface and the deep type is about 80mm. The semicone type has a value of about 2.0 inches (50 mm), which meets the expectations of a professional level driver who is more focused on driving position.