Features: Elevates your cycling experience with our (1 set) fully concealed assembly, featuring sealed bearings for reduced friction and increased durability. Crafted from lightweight and corrosion resistant material, our (1 set) fully concealed assembly provides exceptional performances and durability. Designed for cycling enthusiasts, our product enhances the riding experience and is suitable for both mountain biking and road cycling. Whether you're tackling challenging terrains or enjoy casual rides, our (1 set) fully concealed assembly offer stable support and smooth operation, ensuring better control and maneuverability. Perfect for professional cyclists, our lightweight designs and outstanding performances will help you improve your speed and stability in competitions. Specifications: Material: aluminum alloy Package size: approx 6.5x6.5x5.5cm/2.6x2.6x2.2inch Package Includes: 1xConcealed Assembly note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.