Microphone Cover Set - 6 pieces foam mic cover, 2.8 x 2.3 inches, caliber size is 1.4 inches, suitable for most standard handheld microphone, not for headset mic. | Foam windscreen - Eliminates a bit more of that background noise during our recording sessions.They don't muffle the sound and are washable, makes this a practical and sanitary. | Perfect Filter - Microphone covers help quite a lot with the pops and wind and a little bit with the sibilant "s" without altering the natural sound of the mic. | Widely Application - Microphone Foam Windscreen can be used for singing, voiceover, ktv, dance ball, conference room, news interviews, stage performance and other places and anywhere else you need quality sound. | Tips - Foam microphone covers was squeezed in a box, so please put it out for a little time then it will return to its original shape.