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: 18.5mm / 0.73" Inner Diameter: 139mm/5.47" External Diameter 1: 171mm/6.73" External Diameter 2: 176mm/6.93" Suitable for: the speaker ring fits most 6.5 inch speakers. for Honda Accord 2008-2012 for Honda Crosstour 2012-2013 for Honda Civic 2006-2020 for Honda CRV 2007-2014 for Honda CRZ 2011-2013 for Honda Insight 2010-2013 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.