The holder is a little tight for my dynamic microphone, the standard AT DR-140. The microphone is a simple portable singer microphone. All other mounts were intended for cardioid microphones and larger microphones. It was the only one small enough to house this sleek mic at this price point. Even though the hole is maximized on this mic, the tight fit makes it very reliable. I would recommend it to anyone on a budget. The quality is quite good and it's hard for me to say that more expensive models would be better or better.