Good Sound Insulation: ours acoustic wall panels are made of quality polyester fiber which have better sound insulation than soundproof foam panels; These sound deadening panels are reliable, non slip and odorless, which are safe for your family and pet, you can stick them on your home wall, door or ceiling with no worry Self Adhesive Design: these sound absorbing wall panels have self adhesive design which can easily peel and stick, easy to install without extra installation tools, such as double sided tape or glass glue, saving your time and energy while making you have more quiet time Various Usage Places: you can use these soundproofing boards to keep away noise or prevent disturbing those around, they are suitable for apartment, gym, home studio, home, office, gaming room, home theater, anchor room, recording studios, meeting room, hotel and so on Decorative Square Sound Proof Boards: each sound absorbing wall tile is about 12 x 12 x 0.4 inch / 30 x 30 x 1 cm while it