?Made of 6061 aluminum alloy material£¬ strong and durable. Frosting finish£¬ exquisite workmanship and nice touch feeling. Suitable for road and mountain bike.?<br><br><strong>Features:</strong><br>Easy to install.<br>Constructed of strong and durable 6061 aluminum alloy.<br>Frosting finish£¬ exquisite workmanship and nice touch feeling.<br>Suitable for road and mountain bike.<br><br><strong>Specifications:</strong><br>Color: Black<br>Material: 6061 aluminum alloy<br>Diameter: 27.2mm / 1.07in£¬ 31.6mm / 1.24in (optional)<br>Length: 350mm / 13.8in<br>Weight: 311g(27.2mm)£¬ 349g(31.6mm)<br><br><strong>Package List:</strong><br>1 * Seat Post