This high-quality aluminum alloy bicycle carrier is perfect for mountain bike enthusiasts who want to carry their bags with them. With an adjustable fitting, this carrier is compatible with universal mountain bikes and can be easily mounted to the rear seat post. The black color and retractable model make it both stylish and practical. Measuring 33*12cm, this carrier is large enough to hold a pannier bag or luggage, allowing you to easily transport your belongings on your next cycling adventure. The bundle includes everything as shown in the picture, and the manufacturer offers a 1-year warranty for added peace of mind. Upgrade your cycling experience with this durable and versatile carrier rack.