Made with Fibermaxx2, which is a proprietary EPI material that uses the latest technology to combine a self lubricating polymer with wear resisten fibers. While developing this new material we found that it greatly outlasted the competitors rollers before showing any signs of wear during a 25,000 cycle load test. Provides superior wear and heat resistance without damaging your clutch like the OEM sliders Allows the clutch to upshift and backshift more efficient with less bindage and less clutch wear. Includes 3 rollers for the QRS-X clutch