The Van Nicholas Titanium Easy Adjust Seatpost is made from titanium due to it being  one of the best materials for seat posts because of its ability to deflect shock and increase riding comfort. The new sideways clamping mechanism allows for easy assembly and rider position fine-tuning. Made from Aerospace-grade 3Al/2.5V Titanium alloy with a brushed finish. This seat post has a zero setback and is available in 300 or 400mm length and Ø27.2 or Ø30.9mm diameter. At the back there are laser etched hash marks to lift it up to your desired length.  Van Nicholas Titanium Easy Adjust Seatpost Features Length - 300mm Diameter 27.2mm Spring Loaded 100% Titanium