Shimano FC-09 Chainring 54T Advance Compatible with 3/8 inches drive

Compatible with 3/8 inches drive ratchet or torque wrenches and 24mm flat wrenches

Includes: Bolt and washer and Aluminum plate HDM cover

Colours: Fanatic Teal / Carbon / Chrome

And finally

Shimano FC-09 Chainring 54T Advance Compatible with 3/8 inches driveThe Shimano Dura Ace FC 09 11 speed chainrings are the perfect replacement for worn or damaged chainrings. Features HOLLOWGLIDE hollow outer chainring technology significantly improves rigidity and reduces weightEliminates outer chainring flex for precise shifting performance, even under high loadTeeth specifically developed for use with 11 speed chains to enhance contact, efficiency, and power transfer SpecificationsCompatible chain: Shimano HG 11