This is a genuine AKG microphone pop filter (obtained when purchasing a C414). It has been opened, but is unused. I was using a different pop filter, so I stored this one without using it. Please understand that there may be some age-related changes due to storage. There are no noticeable issues upon visual inspection, and I believe the condition is good. As it is a genuine product, you can be assured of the fit, and it is especially recommended for those using AKG microphones. Instant purchase OK. I will pack it carefully and ship it.