Acoustic Screen Width 4 1/2 ft Length 8 ft Thickness 1 in Color Gray Noise Reduction Coefficient (NRC) 0.7 Material Fiberglass Hook-and-Loop Closure Steel Frame Vinyl Barrier Screen Temp Range Facing 180 Degrees F / Fiberglass 1000 Degrees F Resistant To Grease Mildew Oil Coverage Reduces up to 21 dBa Standards AS8A-84 flame and smoke Class A fire ratings. Includes Steel tubing frame with detachable platform legs and connector clips