Specs:

• Overall Diameter:  4.31″ (109.5 mm)
• Voice Coil Diameter:  2.93″ (74.46 mm)
• Diaphragm Material:  Titanium
• Diaphragm Height:  13.5 mm
• Diaphragm Thickness:  .05 mm
• Nominal Impedance:  8 ohms

Package include :

4 pcs aftermarket diaphragm