There is a set of protective cover, a pressure plate and two nuts, which are used to replace the accessories of the FS120 200 250 56R 80. characteristic Nice work. Replace old or damaged parts. Improved metal hardware is more robust. The accessories are small and the installation is simple. feature: Material: Iron Item size: Outside diameter: 80 mm / 3.15 inches Inside diameter: 13 mm / 0.51 inch packing list: 1 * protective cover 1 * pressure plate 2 * nuts