The groundbreaking MultiZorber OC703DR is the first time in retail history that a single acoustic product can be used in three ways; as a wall panel; as a ceiling-mounted cloud; and as a corner bass trap. Three products in one! Features include: · 2 inch. | 3# Owen Corning 703 fiberglass board with nylon sailcloth on the back and Guilford FR701 fabric on the front · Best-looking and lightest weight OC 703 product on the market - NO frames that add weight and decrease absorption · D-Ring mounting system on the back allows for the easiest, least intrusive wall mounting of any acoustic panel, as well as corner and ceiling mounting · NRC 1.05 against a wall or ceiling, even more as a free-standing baflle, cloud or trap · Lightweight - less than 6 lbs.