100% brand new and high quality Introduction: Hi,Friends First please allow me to thank you for riding bicycle in your daily life,both of us know that this healthy,low-carbon life style doing great help for our mother planet,hope we can keep it as one of the best way when go out.No matter you just look a seat post tube for your ordinary,or you are a professional bicycle rider,or buy for your children,This seat post tube can help you ride more safe and comfortable. Features: Efficiently make you ride the bicycle more comfortable. Five fresh colors for your to select,make your bicycle look more lively. Carbon fiber material,light,corrosion resistance,suitable for those people who's weight below 150 KG. Can be applied for ordinary bicycle,child's bicycle,mountain bike,folding bicycle,etc. Specification: Product Name:Ultralight Carbon Fiber Matte 350 mm Seat Post Tube For Mountain Bike Bicycle Material:Aluminium Alloy Color:Black,Green,Pink,Blue,Red(As shown in the picture,color selected) Dimensions: app.31.6 x 350 MM Surface:Matte Occasion:Bicycle,bike Quantity: 1 pc Warm prompt: 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering; 2.Because of different monitors and lamplight,the picture may not reflect the actual color of the item,really thank you for your kind understanding 3.Seat post tube only,the screws and other accessories irrelevant demo in the picture are not included. Packaging includes:Seat post tube x 1