Check the listing for details. HUSHMAT 10150 Multi-Use Sound-Damping Kit with Stealth Black Foil, 3.7 Sq. Ft.. Color: Black, Condition: New. Listed at 33.14 USD. Reduce both the vibration and the noise that distorts the great sound coming from your speakers with 1 USA-made material—HushMat Ultra! The Multi-Use Kit provides 4 sq. ft. of material that will treat vibration or rattles in any panel in your vehicle, RV, boat, or truck. It also provides 2x the amount of material found in the company's speaker kit for that high-end, extra-sound deadening performance. This kit contains 4 sheets of 12 in. x 11 in. Stealth Black Foil for 3.7 sq. ft. of coverage._ • Reduces both road noise and vibration of low frequency noise from 0 Hz to 1 kHz • Reduces heat and thermal transfers by over 40% • Interior stays warmer in the winter and cooler in the summer, insulating up to 550°+F • R value: 7 • Lightweight and super flexible—less than 1/8 in. thick and .47 lbs. per sq. ft. • Self-adhesive peel and stick—no glue required • Installs in 1/2 the time versus other brands • Does not require surface prep; adhesion guaranteed—no alcohol or acetone wash needed, no installation tools required • Trims easily with standard razor knife or household scissors • OEM approved; meets or exceeds automotive damping specs GMO149M (General Motors®), WSB-M5G58-A1 (Ford®) and MS-CD 629 Type C (Chrysler®) • Universal application—can be applied to firewall, floor pan, tunnel, doors, roof, rear wheel wells, trunk and quarter panels • Includes 4 sheets of 12 in. x 11 in. (3.7 sq. ft.) Product Dimensions: 13 x 11 x 0.4 in., 1.7 lbs. Package Dimensions: 13.8 x 4.8 x 2.5 in., 1.95 lbs.