This professional star nut installation tool set is designed for easy and safe bicycle headset maintenance. The kit includes a durable installation tool, a spare special screw, and a spare star nut, providing everything needed for a secure installation. Crafted from lightweight aluminum alloy and stainless steel, the tool is both strong and portable. Its long handle offers improved leverage and helps protect your hands during use. To install, simply place the star nut into the tool and gently tap it into the unthreaded steerer tube of your front fork using a rubber mallet (avoid steel hammers to prevent damage). This tool is compatible with 7/8", 1", and 1-1/8" unthreaded steerer systems. Please note it is not suitable for use on carbon fiber front forks. Package Includes: - 1 x Star Nut Installation Tool - 1 x Spare Special Screw - 1 x Spare Star Nut Specifications: - Material: Aluminum Alloy & Stainless Steel - Approximate Weight: 100g - Available Colors: Blue, Purple, Orange, Red Please note that product colors may vary slightly due to monitor settings, and there may be minor size variations due to manual measurement.