Ducati Rear Shock Spring Preload Adjuster Adjustor Knob Diavel Dark Carbon Cromo Please note your color choice (Choose from Gold, Black, Red, or Silver) Made of Heat Treated (Billet) Aluminum [6061-T6]/Manufactured using 100% CNC Machining No Casting or Molding are involved in the Manufacturing Process Finished with Anodize Coating This item comes with: (1) Rear Shock Preload Adjuster