Fatmat 26.8 Sq Ft x 80 mil Thick Self-Adhesive Butyl MegaMat MAX Sound Deadener Bulk Pack with Install Kit One Roll 19.5" x 16.5 ft of Self-Adhesive Butyl MegaMat MAX (26.8 sq ft total) w/Install Instructions, Roller, Knife, FatMat Decal Thick Butyl Rubber Compound Under Thick Protective Reinforced Aluminum Face Sound Deadening Acoustical Insulation for Cars, Trucks, RV's, Marine, & Home Hear more of the sound you want! Vibrational damper reduces distortion, boosts bass. Uses range from personal enjoyment to SQ Competition Cars For the Ultimate in Anti-Vibration & Sound Quality!