Features: *New and high quality *Made of high quality materials, very practical Quick installation and easy to use *Made of high-quality materials, anti-corrosion, wear-resistant, and non-deformation *Enhance appearance: Add fashion personality and make your car look cooler and more distinctive. *Easy to install: Easy to install, firm and not easy to fall off. Simplified installation with no modification, cutting or drilling required. *Fashionable and long service life. Please confirm the suitability of the model before purchasing. Specification: Product name: Bicycle Middle shaft screw Material: Metal Color: Black(as shown in the picture) Size: 20.4mm(as shown in the picture) Weight: About 22.5g Applicable: M15 is suitable for ES25 axles. Note: The outer diameter of the screw thread must be consistent before it can be used! Use an 8mm hexagonal wrench for installation Package Content: 1* Bicycle axle screws Notes: 1. Due to various factors such as monitor brightness and light brightness, the actual color of the item may be slightly different from the image displayed on the website. 2. Manual measurement data may have slight deviations. Features: Long Service Life M15 MTB Bike Middle Shaft Screw Fashionable and Reliable Material: light weight, good strength and well temperature resistance, good impact resistance Appearance and performance: automatic cutting, smooth edge, fit most of the road bicycles, delicate texture. Compatibility: smooth surface and exquisite workmanship, fit most of the bicycles. Easy Installation: Brand new and high quality, easy to install.