This is a set of 4 microphone holders that came with a microphone stand I purchased. Although they are unbranded, I believe they will work without any problems. They are flexible and sized to fit standard microphones like the SM58 and SM57. Includes a 3/8 inch to 5/8 inch conversion screw (plastic). I took one out of the bag for the product photos, but the other three have not been removed from their bags. Instant purchase OK! Thank you.