I've got about 15 Mic stands in the studio, and some of them had a smaller capstan head for the mechanism that tightens the boom arm, so I replaced the smaller ones with these. because I can keep the microphone leads rolled up on the mike stand and hang them over this type of Capstan. So I don't have to Keep the leads anywhere else, they are all on the mic stands ready to go, and that saves me a lot of time.