Round Mounting Bracket, Fire Rating 3 hr, For Pipe Size Not Applicable, Includes Not Applicable, Includes Mounting Hardware Not Applicable, Outside Diameter 2 in, Overall Height 2 in, Overall Length 4 in, Overall Width 2 in, Product Type Mounting Bracket, Shape Not Applicable, Usage Location Commercial Construction Surfaces, Color Silver, For Use With 3M Fire Barrier Pass-Through Device, Package Quantity 2