KingWinX 35 mm Foam Microphone Windshield, Pack of 5 pcs Green Material: foam Size: Diameter of opening: 55mm (2.2 inch); Inside diameter: 35mm(1.33 inch); Long: 70mm(2.65 inch); Thickness: 6mm Enhances the sound quality by absorbing unwanted sounds / interferance Protect your microphone against wind interference and singers' spit