Features Excellent Material - Using premium PU material, no smell, soft, anti-aging, safe and durable for long time use. Acoustic panel: great for absorbing sound, acoustic panel can effectively reduce echoes and background noise. Flexible use: allows wide application in various places, such as studio, concert hall, home, office, factory, etc. Triangular Foams: Triangle design ensures perfect seamless assembly, which will also greatly improve insulation. Easy to Install: Comes with compact size and light weight also, you can use tape to stick it firmly to the wall. Specification: Item type: acoustic panel. Material: Polyurethane Application: For recording studio, bedroom, office, factory. Product size: approx. 30 x 30 x 5 cm/11.81 x 11.81 x 1.97 inches. Package list: 10 x Acoustic Panels Package List 10 x Acoustic Panel