Description: - Made of aluminum alloy material, full CNC machining Hollow process , sturdy and durable to use. - Lightweight and easy to install. - Perfectly suitable for 28.6mm front stem fork of mountain bike, road bike, fixed gear, folding , etc. - Replace monotonous washers, your bike, the color is more diverse. - 4pcs in , available in , just choose the color you like.Specification: - Material: Aluminum Alloy - Diameter: 28.6 mm / 1-1/8 inch - Height: Approx. 10 mm / 0.39 inch - Color: Black / Red / Blue / Green / Gold, for your choicePackage Includes:4 Pieces Headset Spacers WashersNote:Due to the differences between different monitors, the picture may not reflect the actual color.There is 2-3% difference according to manual measurement, please check the size carefully before you buy the item. Thanks!