Briny River 4Pcs 6.5" Auto Car Speaker Spacer Ring Adapter Bracket Extender

[Widely Used] Automotive ring mount bracke 6.5-inch speakers, widely used in cars, boats, trucks, RVs and audio projects, also can giving more mounting depth for your subwoofers. [Appropriate Size] Inner Diameter: 138mm / 5.43"; Outer Diameter: 176mm / 6.93"; Thickness: 14mm / 0.55". [Professional Design] Our speaker spacers are professional designed, they allow the speakers to perform to their full capacity by not allowing any sound to escape into the door cavities. [Improved Clearance] These brackets extend the mounting depth, providing additional clearance to prevent magnet contact with window tracks or internal panels. [Quality Materials] The speaker ring adapter is made of high quality and sturdy ABS plastic, crafted for durability and is resistant to water, salt and moisture to our exacting standards.