this stuff is amazing it really seals the car reduces outside noise what an amazing product five stars five stars very pleased does what it advertises reduces noise like a charm great stuff easy to cut and apply not a huge difference barely noticeable probably should economy worked great for 5 minutes dynamat 10005 roller 1 hardwood made a noticeable improvement not dramatic in reducing road noise five stars great product get the roller spend extra to make sure your get good quality material every time period i put in the back on my 4 runner and some of the material was unusable due to poor shipping choose the seller carefully