Specification: Brand New & High Quality Type: Diaphragm without Driver Model: RPD3220Ti Nominal Impedance: 8 Ohms Inner diameter of imported coil: 74.5mm The distance between the center point of the two binding posts: 104mm ±1mm Outer diameter of round frame: 109mm Replace your broken part Compatible with the vehicle: For RPDE3220Ti, D3220Ti, D3220Ti-ND, D375Ti Driver Package Includes: 4 Pcs Diaphragms Please Attention: Please check compatibility chart,part photos,part number above carefully to make sure it is what you need. Communication is the best way to solve the problem. If you have any problems after you receive the package, please contact us in time, before opening a return or case.