The MS QC 1 B is a coupler for rapid and effortless mic clip and boom arm mounting. The clever two-piece construction of black powder coated aluminum and steel features a 5/8" female thread stem that attaches to the mic stand and a 3/8" male thread crown that attaches to mic clips or boom arm hubs. The smart groove and ball plus hex lock design ensures solid coupling and perfect alignment. The MS QC 1 B Quick Coupler includes a dual thread adapter to provide universal compatibility with all mic stands, clips and boom arms.