1、PACKAGE CONTENT: 4 spacers, 1 screw, 1 stem top cover, 1 tension adjuster. The outer diameter of the washer is 34.0mm/1.3in, the inner diameter of the washer is 28.6mm/1.1in 2、LONG LASTING: Made of aluminum alloy material, environmentally friendly, strong, not easy to rust, and can be used for a long time 3、PRACTICAL and CONVENIENT: Prevent excessive wear of the bearing, allow the bearing to rotate freely, and provide comprehensive protection for the bicycle 4、EASY to USE: Light weight, easy to install, with glossy appearance, you don't have to worry about scratching your hands during use 5、SCOPE of APPLICATION: Suitable for bicycles with a toothless front fork standpipe diameter of 28.6mm/1.1in Item Type: Bike Headset Product Material: Spacer + Stem Top Cover: Aluminum Tension Adjuster: Steel Screw: Stainless Steel Applicable To: Bicycles with a Toothless Front Fork Standpipe Diameter of 28.6mm/1.1in Product Size: Washer Outer Diameter 34.0mm/1.3in Washer Inner Diameter 28.6mm/1.1in 4 x Spacer 1 x Screw 1 x Stem Top Cover 1 x Tension Adjuster