I purchased this for studio use as I really love the Beyer M88 microphone for vocals. In live situations it doesn't matter because "pop" noises from vocals aren't that noticeable but in studio every little blowing in the microphone can be heard easily. When I recieved the item I was pretty suprised because it is really big - this thing swallows half of the microphone. The foam layer is also pretty thick, but not very dense so it allows to the sound to go thru. Unfortunately some big "pop"s will also make it to the microphone but nowhere near as much as with random foam I had on the mic before. (Maybe it's something they can't improve without losing the transparency in tone so I'll give it 5 stars anyway.) Big plus is that the foam sits nicely around the microphones grille and is secured with a tiny strap and a button. Overall it is a good product - maybe just a bit pricey but you can feel the quality.