Road Bikes AluminumAlloy Seat Tube Saddle Pole Bicycle Seat Post Bikes Seatpost
3 size and 2 color can be available for you to choose. Size: Length: 30cm (11.81in). 28.6mm (1.1in). 27.2mm (1.07in). Material: Aluminum Alloy. Anti-oxidant will be waterproof and rust resistance.