The overall feel of this product is of high quality. This is something the original capsule should come with as the Sennheiser ME64 vastly improves with this foam. It improves the brightness of the mic by reducing it by a lot. It works as a pop filter, reduces the sybilance and there has been no wooshing whatsoever in my booming. I really have no complaints, Thomman should sell this in a bundle with the mic. That's all.