Tremendous Bass Gains 2mm nominal Thick No Heating Required Forms & Bonds To Virtually Anything Coated Super Stick Formula Gain Unbelievable Sound Quality Stop Rattles, Vibration & Noise Control Reduce Distortion Massive DB Gains Practically eliminate Road Noise, Loud Exhaust and Engine Noise Leaves No Odor Great For Firewalls, Floors, Doors, Trunks, Side Panels. Roofs and more...... May Be Placed Under The Hood Paintable Very Flexible