New Dual Car Black Subwoofer Box Sealed Automotive Enclosure for Two 10" Woofers 10D 10" woofer holes are 9.125" in diameter, built-in terminals with gold screw posts, fits most cars High quality MDF hardwood, enclosure volume is .85 cubic feet per chamber, height 13" x length 28" x top depth 10" x bottom depth 13", speaker mounting depth is 9.625" The front (where the woofers are loaded) is flat and the back is slanted, made of only the best black aviation carpet Ships fully assembled, simply drop in your woofers Applications: car, truck, SUV or fixed installation speakers