Corner Bass Trap Cube Acoustic Foam, Soundproof Panel. FEATURES: Applicable To: Home Decoration Wall, Widely Used in Recording Studios, Recording Studios, Audio-visual Rooms, Audio-visual Rooms, Piano Rooms, Drum Rooms, Anchor Rooms, Home Theaters, KTV, Soundproof Rooms, Conference Halls, Studios, Broadcasting Rooms, Theaters, Etc. Interior Decoration of the Occasion Eco-Friendly and Fire-Proof -- Our Sound-absorbing Foam Panels Crafted from Fire-retardant and Eco-Friendly Material, It is Safe to Use in Small and Medium-sized Rooms. Sound Vibrations Are Broadcast Through the Air, Causing Issues with Noise Entering and Exiting Your House Studio. This Sound Absorbing Polyurethane Foam Panel is Designed to Reduce Echo Within an Environment. Easy to Install: These Sound Panels Can Be Installed by Anyone Simply Attach Spray Adhesive or 3M Double Sided Tape (sold Separately) to the Back of Each Panel and Adhere in the Desired Position. SPECIFICATIONS: Material: EPP Usage: Household Style: Classic Polymer Type: Open Cell Polyether Technical Bulletin California 117-2013 Flammability Standard Compliant. Size (L X W X H) /1 PCS : 15x15x15cm / 5.9x5.9x5.9 Inch. Please Allow 5-15mm Error. INCLUDES: 4 PCS. . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.