It is made of GR9 titanium. Very strong but light. Material: Titanium GR9 (Ti3Al2.5V). Color:Titanium raw. Size: Fit fork steer tube 28.6mm (1-1/8" ). Angle: 7degrees, (The default is 7 degrees. You can customize 0 degrees, 17 degrees, and the angle can be customized, up to 35 degrees.).
eBay