1965-1970 Chevrolet Bel Air UltraMat Sound Deadening insulation Deadener Heat Floor Kit , Bel Air1965 1970 Chevrolet Bel Air UltraMat Sound Deadening insulation Deadener Heat Floor Kit The engineering team at Zirgo Sound Labs has specifically designed this kit for your 1965 1970 Chevrolet Bel Air Inner Floor. This kit includes all the correct material needed to reduce echoes, drones and unwanted rattles resulting in a quieter ride. The exclusive advance design of the open closed cell foam wall helps remove unwanted sounds by absorbing background