The Scosche SE12KT-WM1SD speaker enclosure box simplifies the process of adding an additional 12-inch Subwoofer to your vehicle. The speaker box comes carpeted with a grey trunk liner for strong durability. Enclosures come pre-wired and are constructed of 5/8” MDF with a poly fiber damper lining, and nickel-plated spring terminals. Recessed side panels make lifting these into a car a breeze. This is the perfect accessory to complement building your perfect sound system. The nickel-plated spring terminals are reinforced with glued joints and seams. Recessed side panels make for easy lifting in your car along with internally pre-wired fast-on terminals. Includes 1 I Subwoofer Box 16.75 x 17.75 x 20.55 inches