These were made to fit for our SM58 dynamic microphones for vocals and other similar microphones! Simply unscrew the old grill, screw on the new one and you have what looks like a brand new microphone. The screen grills takes the impact and bleeds it as a screen deformity.These grills are designed to protect your microphone by denting on contact, keeping the components of the microphone safe! replacement microphone grille ball with built-in foam windscreen to reduce wind, breath, noises and it's help to absorb moisture so that the capsule doesn't get wet. 4 pieces of microphone grille compatible with for SM58, in a classic and simple style to fit your demands.The price is low enough it's also worth it to just replace these even if one gets dirty and you otherwise would have had to spend time with cleaner and a toothbrush. This dent-resistant grille is a perfect replacement for your aged, dinged or dented microphone grille. It may not makes any difference in sound, but they sure make your mic look better. size: Height 51mm, bottom diameter 31mm Material: Metal colour: Black Package Contents: 4 x Microphone Mesh Heads Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.