Noise Reduction Partition Panel Width 12 ft Thickness 1 in Color Gray Noise Reduction Coefficient (NRC) 0.85 Material Fiberglass Temp Range 180 Degrees F (continuous) +265 Degrees F intermittent Resistant To Grease Mildew Oil Coverage Reduces up to 12 dBa Standards ASTM E84-Class A Fire Rating Includes (3) 4 ft x 94 in Panels (3) Chain Connectors (3) Threaded Rod Adapters (2) End Stops (15) Two Wheel Rollers (2) 6 ft Straight Track