This speaker grill not only protects against dust, but also makes the speaker look good. | Since the mesh cover has different materials, thicknesses and different degrees of density of the mesh, it will have a certain influence on the sound emitted by the speaker, especially the mesh cover has a certain attenuation effect on the high-pitched portion. | Plastic part: outer diameter: 66mm / 2.6"; inner diameter: 46mm /1.8"; height: 5mm /0.2"; mounting hole distance: 56mm /2.2"; mounting hole Diameter: 3mm/0.12"; screw size: 9.5x2.5mm/0.4x0.1" (LxD);Metal mesh part: 45x7.5mm/1.8x0.3" (DxH) | Material: ABS Plastic + Cold Rolled Steel; Color: Black | Package Contains:2x 2in Speaker Grill