Product Characteristics: Car audio speaker spacer ring aid in audio speaker installation, play an important part in reducing resonance and making the speakers stronger. Replace new car speaker spacers adapter, provide better sound quality,fixed speakers to reduce door resonance. The ring mounting bracket is good partner for mounting new speaker. You can install the speakers you want by adding extra depth. Material:Speaker mounting bracket ring made of good ABS material, will not oxidize moisture-proof, durable, wear-resistant, long service life, smooth surface, not easy to fade, no scratches.Specification: Material:ABS Fit for Speaker Dia:6.5" Depth: 16.6mm / 0.65" Inner Diameter: 152mm/5.98" External Diameter: 174mm/6.85" Suitable for: the speaker ring fits most 6.5 inch speakers. Front: for Toyota Celica 2000-2005 for Toyota Corolla 2001-2011 for Toyota Echo 2000-2005 for Toyota Matrix 2002-2011 for Toyota Prius 2001-2011 for Toyota RAV4 2001-2011 for Toyota Sequoia 2003-2011 Easy / Professional Installation:Speaker mounting bracket ring installed on the car audio system, utilizing existing vehicle mounting points without cutting or drilling.Package List:2 Set Subwoofer Speaker SpacerInfo:This product is a speaker mount recessed bezel spacer and without internal speaker ring.Note: Please ensure this part is suitable for your vehicle before purchasing. Please allow 3-5mm differences due to manual measurement.