12 pcs. Acoustic Absorption Panels, Beveled Ceramic Tiles for Sound Insulation, 9 Blocks, For Offices Homes, 30X30X0.9Cm[Excellent Insulation Sound]: made of high-density polyester fiber, 300 lbs per cubic meter, better sound insulation than insulation foam! Sound insulation, fireproof, odorless, anti-slip, anti-corrosion and anti-fading. [Fashion]: The stylish tilt panel doubles up as decorative wall art for your favorite space, so you can leave countless beautiful memories in a comfortable environment. [Easy installation] both general as spray adhesive and double double-sided tape can be used. Simply stick spray glue or double double-sided tape (not included) on the back of each panel and hold it in position. [Wide Application]: Very suitable for on-site sound therapy on the wall of studio or office-used in recording studio, control room, home office studio, theater home entertainment, home office. Easy to shape and cut, the modification will not affect the performance. Or use it on the ceiling, behind the TV, or under the carpet! [High Density & Eco-Friendly]: 250kg/m3, made of polyester cotton, flame retardant, can be safely breathed and contacted, making it great for any home or studio location, safe for adults, children and pets! Colour: dark greyMaterial: polyester fibre cottonSize: 30x