Self-Adhesive Design - Our soundproof panels are self-adhesive, can be installed to a of different surfaces, such as walls, doors, ceilings. Just rip down the first layer of double-sided tape, no need extra glue. Save time and money. Special Appearance - We have upgraded their acoustic performance and appearance. Adopt beveled edge and multi-line design. You can DIY different shape. The sound panel playing a good role in decorating the wall. Perfect for professional studios, video blogger, game room, home theaters, etc. Remarkable sound insulation effect - The acoustic panels can cut dowm noise and , protect your privacy, aviod the noise effect others. Environmentally Materials - Made of Polyurethane, they are no smell. Safe to breathe and touch,safe for adults, kids and pets. No any risk when you stay in a room with our acoustic foam panels for a long time. With adhesive backing, random color, no designation accepted Colour:White Material:Polyurethane Size:About:30x30x1cm Package Contents: 16 x Self-Adhesive Acoustic Panels Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.