Dynamat improves mid-bass performance and stops vibration rattles and squeaks. Your stereo will sound its very best with Dynamat. 9x 18 x 32 pieces of self-adhesive Dynamat Xtreme. To be used when mounting your speaker to a metal baffle like a car door or rear deck lid. For proper installation, use one of our Dynaroller tools.We operate a dispatch policy to ensure your parcel will be processed within 24 hours. The item "Dynamat Xtreme Extreme Bulk Pack Car Black Sound Deadening Proofing DYN10455" is in sale since Friday, August 31, 2018. This item is in the category "Vehicle Parts & Accessories\In-Car Technology, GPS & Security\Other In-Car Technology". The seller is "recyclestar" and is located in Rotherham. This item can be shipped worldwide.