Stinger RKXTK Roadkill Expert Series 20 Square Feet Sound Damping Material Trunk Kit Roadkill Expert Series Sound Damping Material Trunk Kit is perfect for dampening car trunks Overall improved sound quality Super adhesive and conformability provides maximum surface contact Package contains 10 sheets (12" x 24") Vibration damping adhesive sheets 12 x 24 sheets (6 pieces) Reduces rattling and road noise in door panels Easy cut and apply installation