If your microphone grille is dented, scratched, loose or starting to smell from long use, you do not need to replace the whole microphone. This 4 pack gives you simple screw-on gold grille replacements for SM58-style handheld mics. Each grille has a metal mesh shell with a foam insert inside. The mesh helps protect the microphone head, and the foam helps reduce light breath pops, spit and small dust during singing or speaking. It is made to keep normal vocal sound clear, not to change the tone of your mic. The size is about 2 in x 2 in, so it fits many SM58-style wired and wireless handheld microphones, including Shure SM58, SM48, BETA 58A, SM58LC, PG58, SV100 and similar models. Please check the size and thread style of your old grille before ordering. Good for karaoke rooms, churches, schools, DJs, bands, speeches, studios and live events. It can also be used for outdoor events, but strong wind may still need an extra foam windscreen.