Pay Attention: Please do measure the actual required diameter before purchasing. Saddle clamp is not included, please purchase the saddle clamp separately if needed Material: The seatpost is made of 6061 aluminum alloy, high strength, strong and durable, good corrosion resistance Specifications: Diameter - 25.4 mm, Length - 350 mm, Wall Thickness - 2 mm, Compatibility: Fits bikes with 25.4 mm seat tubes, Weight - 5.04oz (143g) Easy to Install: installation is easy, just loosen the bolts of your old seat and remove your seatpost, then fix the seat bolts to the new seatpost and install it into your bicycle frame Universal Type: Suitable for most road bike, fixed gear bicycle, mountain bikes, downhill bikes, track bikes, MTB, BMX, DH, etc ASIN B094JC26D2 Color #01 Black Bike Type Mountain Bike, Road Bike, Fixed Gear, BMX Brand Name Azarxis Unit Count 1.0 Count Item Weight 0.16 Kilograms Manufacturer Azarxis Model Number AZ-OS0921 Item Diameter 25.4 Millimeters Material Type Aluminum Included Components Bike Seatpost Warranty Description 🔔 Azarxis Guarantees: If there are any quality issues with our products, please feel free to contact us. We offer a 20-month seller guarantee Item Dimensions W x H 1 W x 13.78 H Manufacturer Part Number AZ-OS0921