[Superior Quality - Made in USA] - Durable and made of our proprietary sound absorption material, eco-C-tex, which is more eco-friendly and typically more effective compared to traditional acoustic fiberglass or foam panels. Also contains a layer of Mass Loaded Vinyl (MLV) for soundproofing to block sound. [Proven Effective - Lab Tested] - 2-in-1 Sound Blocker and Absorber. Reduces echo and reverberation in a room, improving speech and overall sound clarity. Absorbs an average of 75% of sound waves that contact the sheet. The MLV layer blocks sound from transmitting through, with an STC of 20. [Easy to Install & Remove] - Portable design with grommets and included hanging hardware. Use as an acoustic treatment over walls, doors, windows, or as partitions. Measures 82" x 34.5" and weighs approximately 20 lbs. [Safe for Your Health] - Non-toxic, non-carcinogenic, & no fiberglass or inferior foam.