3/4"D x 10.5"W x 20'L, Rolled Ridge Vent, Flexible, 3 Dimensional Black Matting Manufactured From Natural Fibers Which Are Laid On A Polyester Mat, Single Rolls Are Boxed, 1 Coil Of Roofing Nails & 2 Nail Gun Pads Are Included For Installation, Class A Fire Rated, Ice Evaluation Report ESR-1218 & Passes Miami Dade County Building Codes, 40 Year Warranty.