2 pcs. 12 in. x 12 in. box Accumat Hyperflex Damping material for interior panels, trunks and doors. Whether you want a quiet ride or you're a car audio enthusiast, upgrade your car with Accumat and eliminate unwanted vibrations and road noise. Better materials mean better performance. Its not impossible to win the battle against unwanted noise and vibration. All you need is the proper application of the laws of physics. Better research produces superior materials. Scosche has developed Accumat Hyperflex, the ideal material for eliminating unwanted noise. It offers superb flexibility for better installations, and with pressure sensitive adhesive is extremely easy to use. In addition to that it exudes no odors, and significantly reduces interior noise levels and unwanted vibration and heat.