The enclosure is constructed with 5/8 MDF, covered in high density carpet, and features quick release compression terminals. The most convenient way to get low frequency bass in your system is to drop-in a Punch Loaded enclosure. We're not talking junk in the trunk, we're talking the same genuine Punch woofers available separately. Punch Loaded enclosures are constructed with durable 5/8 MDF and tuned by our computer aided design software. P1 Loaded Enclosures feature similar tonal performance as P2 & P3 models, but are easier to move in-n-out of vehicles due to their lighter weight. Please make sure to box up product in original boxes and all paperwork and parts. Speakers with Burnt Coils or frozen up or physical damage will not be accepted. Amplifiers that have been smoked from improper use will not be accepted. (Boxes, Packing, Instructions, ETC) Everything we sent needs to come back. No physical damage will be accepted!!! This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers". The seller is "bigjeffaudio" and is located in this country: US. This item can be shipped to United States.