Features： 1、Aluminum Material: Made of high quality aluminum alloy material with high strength and wear resistance, having good performance for long service life. 2、Fine Workmanship: Manufactured with CNC process, anodic oxidation coloring. Smooth surface, and the color is not easy to fade, suitable for long term use. 3、High Performance: The cover has the function to be helpful to prevent dust and water from entering to extend durability, providing a satisfying using experience. 4、Powerful Structure: The upper and lower double bearing structure of the bowl group, smooth and unimpeded, labor saving and easy for protection. 5、No Burden: Aluminum alloy material makes the headset have a light weight, will not increase the burden or cause additional energy waste. Specification： Item Type: Bike Headset Material: Aluminum Alloy Style: DH-497A Color: As Picture Shown Application: for 49.7mm Cone Head Tube with 28.6mm Standard Straight Front Fork Gross Weight: Approx.119g/4.2oz Package List： 1 x Flower Shaped Component 1 x Upper Cover 1 x Upper Bowl 1 x Lower Bowl 1 x Bearing 2 x Pressing Ring