EASY INSTALLATION - If you know about our acoustic foam before, you know how easy it is to install. Backed with chewing , it is lightweight and can be attached to a variety of surfaces. No special or materials are required for installation...the simple but essential design will reduce your workload. Significant Sound Insulation - We are currently testing the insulation and from the test results, we know the acoustic panels can effectively reduce noise and you with a comfortable environment. No matter how noisy your neighbors are, you can read some books in peace at home. Plus, you ' have to worry about disturbing people when gaming at high volume, as the Acoustic Panel will help you even more. Eliminates Echoes and Standing Waves - High-density material with particle design effectively absorbs noise and cancels echoes. Whether you are watching TV at home, playing the piano in the piano room, or even dancing in the training room, the sound control panel will effectively reduce noise and you with the right environment to study and relax. Inflatable and Retardant - Maybe some people are wondering if these acoustic panels are safe. In fact, you ' need to worry because it is made of - materials, which are -, healthy and -. We specially a lighter to the acoustic panel to the material is inflammatory and non-irritating odor, you can it safely. Widely : The sound proofing foam squares are a low cost solution to get better recordings at home or in the studio. used for professional studios, rehearsal rooms, concert , podcasting, churches, home theaters, vocal booths, home,etc. Note: With adhesive, the color of the adhesive is random, you cannot to specify size:30x30x3.5cm Material:Polyurethane colour:Black Package Contents: 6 x Soundproofing Foam Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.