Features: Sturdy and Strong construction made from high strength aluminum alloy, ensuring excellent stability for bikes during transport on both rough terrains and smooth roads, ideal for long distance trips and outdoor adventures. Quick and tool Easy installation with a unique Attach on design, allowing effortless setup and removal even during busy morning commutes, perfect for time saving convenience. General compatibility with various fork sizes and rear wheels, fitting most bike types including mountain bikes, city commuters, and kids' bicycles, catering to diverse family needs. Secure transport Systems featuring a Accuracy locking mechanism to prevent accidental detachment at high speeds, enhancing safety for frequent intercity travelers. Lightweight and portable aluminum build that resists Erosion and wear while being easy to carry and store, making it ideal for road trips without occupying much car space. Specifications: Component : Aluminum alloy Size: mixed Package Includes: 1 set Bike Mount note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.