Description:Fitment: Road bike seat post fits for F8 F10 F12 bicycles, 340mm long.Material: Made of T700 high modulus carbon fiber, monocoque construction, light weight, no rust, no bending, comes with screws and nuts.Function: Designed to provide superior stiffness and yet absorb road shock to give you a performance advantage.Easy Installation: Very simple to install, just unscrew the old seat, remove the seat post, and then bolt the seat to your new seat tube, finally install it to your bike.Replacement: A good and direct replacement for old or broken seat post.Specification:Material: Carbon FiberType: Bicycle Seat PostApplcable Models: F8 F10 F12Color: BlackSize Chart:340x41x22mm/13.39x1.61x0.87inchPackage Includes:1 Piece Road Bike Seat Post