The Yamaha HexrackII Tom/Cymbal clamp attaches a tom clamp or cymbal holder to the hex-shaped pipe and is compatible with 22.2mm diameter pipes. Its vertical angle is freely adjustable. With a synthetic sleeve HexRackII clamps get a rock solid grip on the rails. As the clamp tightens it compresses the sleeve to establish a solid grip. This gives the clamp a secure slip-free hold on the rail when tightened and allows easy adjustment when loosened making the whole setup process quick easy flexible and solid.