4 Inch Speaker Spacer Adapter Ring Mounting Bracket 4 PCS, Auto Car Universal Fit 4" Plastic Speaker Ring Adapter 0.43 Inch Depth, 4 Inch Plastic Car Stereo Speakers Spacer(Black)

0.43 inch Depth extenders. With 4” speaker subwoofer spacer rings, you can install the speakers you want adding extra depth. Good for DIY Audio modification project.
4 inch Speaker Mounting Plate . Inner Diameter : 95mm / 3.7"; Outer Diameter:135mm/ 5.3"; Thickness: 11mm/0.43". Universal spacer ring works with most 4 inch speakers. Note: Please allow 1-2mm error due to manual measurement.
4 inch plastic speaker spacer adapter ring allows for replacement speakers to be installed into the original aperture of your vehicle stereo system.
Easy to install. universal 4 inch speaker spacer utilizes existing vehicle mounting points, and requires no cutting or drilling
4 inch car door speaker bracket made of durable ABS plastic and good craftsmanship for durability and practicality.

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