1Using full hollow out structure design, cool appearance, better strength, full grain friction resistance, better to prevent the sliding in the process of cycling. 2Lightweight aluminum alloy seatpost, more wear resistant, inner diameter hole for the plum tube diameter, strong and beautiful. 3The fixed block on the top cover is plit-type structure, which makes the process of mounting the saddle easier and faster, without damaging the saddle bow, and more reasonable in design. 4Replacementseat tube for most bicycles, mountain bikes, road bikes, and utility bikes. 5Three colors to choose, to meet different needs and requirements.Condition: 100% Item Type: Bike Seatpost Material: 7075 Aluminium Alloy Optional Color: Red,Black,Colorful Quantity: 1PCSWeight: Approx. 293g Specification: Approx.31.6mm/1.24inch Length: Approx.380mm/14.96inch 1 xBike Seatpost