SAFE LINE MARK. There is a safe line mark on the seat post. Please insert at least above the minimum safety line
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
CRUCIAL REMINDER. Ensure you measure the necessary diameter prior to making a purchase. (Saddle clamp is sold separately; please acquire it if required.)
RELAX RIDING. Made of Polished Aluminum Alloy,light weight,strong and durable,Stable and not easy to break
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