Features: *The adjustment screw installed in the middle of the line tube is good news for riders who have difficulty installing the tail adjustment screw at the shifter and brake handle. *After pulling out the pull wire core, cut it at any position in the middle of the line tube(of course, for the convenience of adjustment, it is recommended to cut it near the handlebars), install the line tube at both ends(need to be purchased separately), and insert this adjustment screw. *Mountain bike, road bike shift line tube, can be installed! *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 Fine-tuning Screw Material: Aluminum Alloy Size:(As Pictures Show) Weight: About 3.5g Color: Black(as shown) Package Content: 2* Bicycle Fine-tuning Screw 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: Lightweight and sturdy bicycle fine tuning screw for optimal performance 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.