Description: Bicycle Seatpost: Carbon Fiber Road Bike Seat Post, suitable for both mountain bikes and road bikes. Good bicycle accessory that enhances your cycling experience.Premium Material: Bicycle seat post is made of carbon fiber with an aluminum alloy clamp, ensuring it's lightweight yet sturdy, providing great support and durability.Adjustable Clamp: by adjusting the two screws at the front and back, you can easily change the angle of the saddle to suit your comfort.Clear Scale: Bike seatpost features clear scale markings and limit lines for easy adjustment to your preferred height, making it user friendly and convenient.PLEASE NOTE: Before purchasing, make sure you understand the outer diameter required for the seat post on your bike frame! Specification: Tube Material: Carbon FiberClamp Material: Aluminum Alloy Size Chart: 2.72cmx35cm/1.07inchx13.78inch Package Includes: 1 Bicycle Seatpost Note: Please allow slightly errors 1-2cm differences due to manual measurement.