Description:

Thickness: 18mm/0.71"; Inner Diameter: 77mm/3.03";101mm/3.98", Outer Diameter: 108mm/4.25".. Fits most speakers on the market. Good for fiberglass, kick pods and baffles of the car.. Durable material, it is made of wood that is useful and long service life. Note: This product is a speaker mounting recess bezel spacer without an inner speaker ring. The speaker mounting spacer is needed to use with the acrylic washer..