Specifictions Material:Aluminum alloy Color:black Weight:about 400g Length:350mm(13.8inch) Diameter:27.2mm,30.8mm,31.6mm Packag included: 1 X Bike Seat Post Features: 1.Made of aluminum alloy material,durable and long lasting. 2.Frosted surface,exquisite workmanship,nice touch feeling. 3.Thickened pipe wall. 4.There is a safe line mark on the seat post,adjustment is easy.Please insert at least above the minimum safety line. 5.Long seat post with adjustable top. 6.By raising the saddle height,a forward leaning riding position is born,even if the air resistance (drag) is reduced. 7.Seatpost used for for most old style bike,and the bike saddle with clamp,if the saddle without clamp,please add a clip and install it on the saddle.
