Function: 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“x9" Depth: 26mm / 1.02" Inner Diameter 1: 216mm / 8.5" Inner Diameter 2: 150mm / 5.91" External Diameter 1: 260mm / 10.24" External Diameter 2: 205mm / 8.07" Appropriate for: The speaker ring fits most 6x9 inch speakers. for Toyota 4 Runner 2003-2009 for Toyota Avalon 2005-2011 for Toyota Highlander 2008-2012 for Toyota Prius 2010-2011 for Toyota Sequoia 2008-2011 for Toyota Tacoma 2005-2013 for Toyota Tundra 2007-2013 for Toyota Venza 2009-2011 OE Number:DoesNotApplyInstallation Instructions:Speaker mounting bracket ring installed on the car audio system, utilizing existing vehicle mounting points without cutting or drilling.Item List:2 Set Subwoofer Speaker SpacerProduct Information:This product is a speaker mount recessed bezel spacer and without internal speaker ring.