Belva Dual 12-inch Car Subwoofer Box Sealed 3/4-inch MDF Prelined Polyfil [MDFD12] High Quality MDF Construction has better density and consistency to always sound great Gold post terminals for clean and easy wiring access Box Dimensions: 28-1/2"L x 14-1/4"D x 14-1/4"H Stylish durable black carpeting will look good on any type of car and prevent exterior scratches Two separate chambers allowing each subwoofer its own air space