[Bicycle Seatpost]:This seat post features an adjustable length design to accommodate different heights and riding positions.It's suitable for bow shaped cushions.This adjustable seatpost can absorb the oscillation during riding to provide a comfortable cycling experience [Premium Material]:This bike seat post is made of aluminum alloy,ensuring durability and longevity for your biking adventures.Clear Scale,provides clear and smooth adjustment of the seat post length [Lightweight Design]:The aluminum alloy construction not only provides strength but also keeps the weight down,making it an ideal choice for those who value speed and efficiency [Easy to Install]:The bike seatpost is easy to use,ensuring riders a comfortable riding experience. Length:30cm/11.81inch [Wide Applications]:Our bike seatpost is suitable for most mountain bikes,road bikes,,fixed gear bicycles,BMX,etc, Weight: 0.7 Pounds, Manufacturer: AMSLSIU