The Park Tool 100-9C Adjustable Linkage Clamp has been a trusted tool for professional mechanics for over 50 years, offering secure clamping for most traditional seatposts and frames. Its an excellent choice for assemblers and those working on older bikes, featuring a simple single-lever operation and cable reliefs on both jaws. Built for durability, the 100-9C boasts solid cast-aluminum construction and replaceable clamp covers for long-lasting performance.