4 Pairs (8 Pieces) MDF 12'' Inch Speaker Rings with Bezel | This product will fit in most speakers on the market. Great for fiberglass, kick pods, and baffles. | Outer Diameter: 13", Inner Diameter: 12 1/4", Bezel Inner Diameter: 11 1/8" | Bezel + Ring Width: 1", Thickness: 1", Bezel Thickness: 1/2" | PLEASE NOTE THAT DUE TO THE PRESSED WOOD MATERIAL USED FOR THESE RINGS, THEY ARE VERY EASILY CUSTOMIZABLE FOR SPECIFIC SIZES. THESE RINGS CAN BE SHAVED OR FILED FOR AN IN-BETWEEN SIZE OR FOR A MORE CUSTOM FIT.

Great for Car Audio, Marine, CB Radio and other 12V Applications | Eliminates engine noise/alternator whine | In-line design provides effortless installation without removing existing wiring | 10 Amp Output Current | (2-Pack) Universal 10 Amp Inline Power Noise Suppressor Filter Eliminator Isolator