This product ships ground only
Designed for lining your gasoline engine box to achieve reduction of 5 to 15 decibels (about 40%) of engine noise and is fire retardant
The Boater's Basic Kit is Noise Reduction Enterprises' Do-It-Yourself soundproofing kit. It is versatile and provides an adequate amount of sound reduction at an affordable price. The kit contains a 1" thick sheet of acoustical foam, and all the materials you need to complete an installation yourself.
General Principles of Soundproofing: