About this item Brand New Plastic 1' Black Adapter Spacer Ring. Can be used in Cars, Boats, Trucks, RV and more. Utilizes existing vehicle mounting points, requires no cutting or drilling. Features (4) Car Mount Holes (4) Speaker Mount Holes - (Screws not included). Color: Black ~ Quantity: 2 Rings Size: 1'D x 6.5'W x 1'H