UNO bicycle ultra light aluminum alloy seat tube

Brand: UNOOrigin : CN(Origin)Material: 6061 T6 aluminum alloyColour: Matte Black/Bright SilverWeight: about 270~310 gramsLength: 350/400mmSeatpost thickness: 2.5 mm, high strength.Seat post diameter: 25.4mm/28.6mm/27.2mm/30.9mm/31.6mmSeatpost clamp：31.8mm Use For 27.2~28.6mm seatpost34.9mm Use For 30.4~31.6mm seatpostFeatures:The head is adjustable for easy installation. The seat angle can be adjusted.Light weight and no rust.Suitable for most mountain bikes, road bikes, mountain bikes, off-road vehicles, etc.Easy to stop.Package contains:1 X 350 mm bicycle seat post (with booth)1 X 400 mm bicycle seat post (with booth)caution:Please confirm the size of the seat pillar you need before purchasing.