I have SR3Dpro and 3dio and was able to attach them without any problems, so please use this as a reference. Inventory: 3 sets When shipping, I will put them in a bag and ship them in a cardboard box to prevent them from bending. ──────────────────── Excerpt from the sales site: The small black paper in the microphone capsule of the Headrec Binal 2 is called a pop filter or wind screen. After using the microphone for a while, the filter may wear out. The material of this filter is slightly different from the original filter that comes with the Primo capsule. However, it does not affect the sound quality or durability. This pop filter also works with 3Dio FS and FS XLR. ──────────────────── 3Dio HeadrecAudio ASMR Binaural Microphone Ear Eardrum Filter