Visual privacy, sound absorption and flexible space division Block noise at work - Acoustic Panels are composed of dense Polyester fiberboard. They have a 0.85 Noise Reduction Coefficient (NRC of 0.85) Acoustic Panels are 100% polyester and composed of 50% recycled plastic bottles. They are also 100% recyclable Tackable panels - pin and hang personal items like photos Lightweight yet sturdy construction - panels are 0.6" (15mm) thick Clamp requires a desktop between 0.7" - 2.9" thick