This is a soundproofing board, which are made of good wood material, durable for use. Sound absorbing material reduces the reflection of the sound produced in the room and attenuates the sound. Suitable for home, school, gym, church, restaurant, office, etc. Features -Material: Wood -Size:18.00X13.00X1.50cm/ 7.07X5.11X0.59inch. -This can be very important in situations where you have to cover a large area with acoustic panel, such as a or a home theater. -The creative design will give you a wonderful experience and bring you a good mood. -Creative design. It is nice for both decoration and professional applications. -Soundproofing slot boards are used to absorb sound range frequencies and diminish echoes. -It helps to create a quiet environment for small and medium-sized rooms. You deserve to have. Package list: 1 x dumboard