Self-Adhesive Design - The sound proof panels have double-sided tape behind them.Easy to Install.Just rip down the first layer of double-sided tape,you can paste in wherever you want. | Special Appearance - This acoustic panels multiple color options which can be mixed and matched.Also a variety of stitching methods, unlock different jigsaw puzzle games. It can also be used as decoration. It can also be used as decoration. | Environmentally Materials - Made of polyester fiber material, which is environmentally friendly and harmless, safe to breathe and touch,safe for adults, kids and pets.You can use it with confidence. | Remarkable sound insulation effect - It can cut dowm noise and echo,protect your privacy,aviod the noise effect others.You can more enjoy the time in studio & office. | Widely Application - Play a important role for many occasions,not only for live sound treatment on studio and office walls,also for recording studios,home studios and anywhere you needed.