• Designed for bicycles with seat clamp, compatible with most mountain, road, folding, and track bikes. • Approximate dimensions: 300 mm in length x 27.2 mm in diameter. • Easy installation without the need for additional tools: simply remove the old saddle and seat post and screw the new saddle onto the post. • Includes a safety mark to ensure the correct insertion of the post into the bike frame. • Made of thick steel, offering high strength, durability, and wear resistance. • Color: black.