Advantage: Car for Audio speaker spacer ring aid in for 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.Functionality: Material:ABS Fit for Speaker Dia:6.5" Depth: 34.7mm / 1.37" Inner Diameter: 147mm/5.79" External Diameter 1: 200mm/7.87" External Diameter 2: 166mm/6.54" Compatibility: the speaker ring fits most 6.5 inch speakers. for Skoda Octavia 2004-2008 Front Doors for Skoda Yeti 2009-2013 Front Doors for VW Golf V / 1K. 2003-2008 for VW Touareg I/7L Front Doors 2002-2010 for VW Caddy 2K / 2KN front doors. 2003-2010 for VW Transporter T5 Front Doors 2008-2015 for VW Passat B8 Front Doors Front doors 2015-2020 Installation Steps:Speaker mounting bracket ring installed on the car for Audio system, utilizing existing vehicle mounting points without cutting or drilling.Package Content:2 Set Subwoofer Speaker SpacerAttribute:This product is a speaker mount recessed bezel spacer and without internal speaker ring.Kindly Know:Please ensure this part is suitable for your vehicle before purchasing.