Design Engineering 050101 Under Carpet Lite for Maximum Insulation, 48" x 54" A sound deadening and insulation mat that will help you maintain a quality ride experience Provides additional sound deadening benefits while protecting your interior from unwanted heat and cold Eliminates squeaks, rattles, vibrations and unwanted engine noise and heat 5.6 db(A) reduction Use alone, or with Boom Mat vibration dampening material for the ultimate quiet ride experience