Metal Screen Pop Filter with 12.4-Inch Gooseneck. Shields Vocal Recordings from Popping Sounds while Preserving Vocal Quality. Angled Slats on Metal Grille Divert Air Downward for Cleaner Take. Clamps to Most Standard Microphone Stands or Boom Shafts up to 18mm in Diameter. Grille Diameter: 5.63"/143mm.