Sound Ordnance P-57B 5" x 7"/6" x 8" 2-Way Speakers When you buy car speakers from Crutchfield, we want you to get everything you need to install them. After you place your Amazon order, call us at 800-320-8189 within 24 hours so we can add all the free installation parts required for your vehicle, along with free instructions (if available). If you decide not to call, your order will ship to you as is. polypropylene woofer with rubber surround 3/4" silk dome tweeter power range: 2-40 watts RMS (80 watts peak power) All orders include free lifetime support from Crutchfield's award-winning techs.