USE&FIT. Length:350mm;Diameter:25.4mm 27.2mm 28.6mm 30.4mm 30.8mm 31.6mm;Thickness of the tube:3mm.Seatpost used for for most old style bike,and the bike saddle with clamp
SAFE LINE MARK. A mark indicating safety lies on the post of the chair. Ensure insertion occurs beyond the lowest level of the safety line.
RELAX RIDING. Made of Polished Aluminum Alloy,light weight,strong and durable,Stable and not easy to break
IMPORTANT NOTE. Please do measure the actual required diameter before purchasing. (Saddle clamp is not included, please buy the saddle clamp separately if needed)
EASY INSTALLATION. Just unbolt your old seat and remove your seat post then bolt on your seat to your new seat post and install it into your bike frame