I went to local shops in Las Vegas and i found dynamat and stingers brand, both of these were expensive, plus tax! but i was able to compare both of these products side by side and they both weigh the same and are the same thickness. I knew that sonic carried both of these products but i wasn't sure what was best... in the end I looked at the price difference and stinger is sold for 109.00 for 36sq ft when dynamat is 150.00 for the same amount. I chose stinger, and so far it did what it was made for, to stop trunk rattle and make your sytem sound like its supossed to do! I have a pontiac G5 2009 and i was able to aplly this to my 2 doors and my trunk. Im getting another bulk pack to cover up my back dash and floor of my car just to have a silent ride. This pack would NOT be enough too do a huge suv or truck unless all you want to do is cover doors. You must get a roller and were gloves when installing this product, the foil can cut your hands. Once again SonicelEctronix has the best prices and fast shipping. I received it in 2 days !!