FROST KING FOIL & FIBERGLASS DUCT WRAP 6.0 R-VALUE COMBINES THE PROPERTIES OF TWO POPULAR INSULATING MATERIALS IN ONE HANDY ROLL. CAN BE TAPED SECURELY IN PLACE AND USED ON BOTH HEATING AND AIR-CONDITIONING DUCTS AS WELL AS ON CAR AND TRUCK HOODS AND TRUNKS TO CUSHION AND REDUCE VIBRATIONS. MADE IN THE USA.