Feature:1. High Quality Material: Bicycle headset spacer is made of high quality aluminium alloy material, rustproof, high strength, sturdy and durable.2. Professional Design: and exquisite workmanship, professional manufacturing, have a long service time.3. Size: The inner diameter of bike handlebar stem spacer is approx. 28.6mm/1.13in, height is approx. 10mm/0.39in, practical accessories.4. Easy Installation: Easy to install, lightweight, direct replacement for the old or broken one, convenient for using, save your efforts.5. Wide Application: Bicycle front fork stem spacers are suitable for mountain bike, road bike, fixed gear bicycle, etc.Specification:Item Type: Bicycle Headset SpacerMaterial: Aluminium AlloyCharacteristic: High strength and durableInner Diameter: Approx. 28.6mm/1.13inOuter Diameter: Approx. 34mm/1.34inHeight: Approx. 10mm/0.39in Package List:4 xBicycle Headset Spacer