Feature:1. Decorative and Practical: Bike seatpost reducer is light weight, with stylish appearance, strong compatibility, with practicality and decorative2. Anodized Treatment: The appearance is anodized with bright color and luster, making your bike cooler and more stylish3. Easy installation: Bike seatpost tube adapter has simple and quick installation, can be directly snapped on the seating mounting position4. 4 Size Options: The bike seatpost shim has 4 different szies, which can be selected according to your preference and needs5. Aluminum Alloy: Seatpost reducer is made of aluminum alloy, which is strong and durable, not easy to rust, and can be used for a long timeSpecification:Item Type: Seatpost ReducerMaterial: Aluminum Alloy.Package List:1 x Seatpost Reducer