Bought it without thinking, and turned out to be amazing product. The filter is perfectly held in front of the microphone capsule by the flexible steel arm. While dynamic microphones don't require it, small and large diaphragm condenser microphones do. Since it even shields the capsule from unintentional water drops that may fall from my mouth, I have never used my microphone without it. In my opinion, it gives the microphone setup on live streams or in videos a lot more professional appearance.