Package includes: 1 x auxiliary sleeve, 1 x stamen rods, 1 x star nut and 2 x retaining screws. The bicycle tool is suitable for 28.6 mm and extremely comfortable to use. The bicycle nut mounting tool set is made of aluminium alloy and stainless steel, sturdy and durable and can be used for a long time. Fine workmanship, high hardness, not easy to deform. Simply slide the outer sleeve onto the steering tube, lower the star nut, align the locator pin with the tube, and then gently tap with a rubber hammer to complete the process. The bicycle star nut set is compact and easy to carry without increasing the travel load. Damaged star nuts can be replaced at any time. You can easily adjust and optimise your bike parts. The star nut tool is suitable with an outer diameter of 28.6 millimeters and can be used by most mountain bikes and bicycles on the market with a wide range of applications. Make sure your bike parts work safely and efficiently.