BAZHOU Bike Expander Bolt,Stainless Steel Bicycle Headset Expander Plug with Diamond Knurled for Expanding Bike Headset [Replace Worn-out Parts]: This headset screw road bike is mainly to help you replace the traditional star nut and top cover more simply and easily, thereby extending the life of the bike [Replace Worn-out Parts]: This headset screw road bike is mainly to help you replace the traditional star nut and top cover more simply and easily, thereby extending the life of the bike [High-quality Craftsmanship]: This fork expander adopts diamond knurling and T6 heat treatment, which is more wear-resistant and durable than ordinary products, and will not damage the front fork, this is an essential tool for bicycles Color: silver Size: The outer diameter of the upper end is 28.6mm Quantity: 1pc 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding. 3. Only the above package contents, excluding other products.