The Kalloy SP-359 seatpost offers resilient performance that is perfect for any bike. This durable aluminum seatpost offers lightweight performance that will hold up to the rigors of riding. The SP-359 features Kalloys Microp-Top clamp system that provides a secure hold and provides fine adjustment to position your saddle in just the right spot. The Kalloy SP-359 offers reliablility and dependability that is perfect for any rider.SpecificationsColor: BlackDiameter: 31.8mmLength: 400mmMaterial: Aluminum