This does everything you may expect of it - no more and no less. It's a stainless steel coloured , so look elsewhere for a brass or black ABS plastic one. You'll need it if you have a US-style 5/8" mic holder and want to attach it to a European-style 3/8" mic stand mount. Most mic holders come with one inside (e.g. the t.bone Microphone Holder L) so you only need this if you've lost one or have a 5/8" holder that doesn't include one.