ITEM NAME:12 Pack Acoustic Wedge Studio Foam Sound Absorption Wall Panels 2 inch x 12 B2X5 12 Pack Acoustic Wedge Studio Foam Sound Absorption Wall Panels 2 inch x 12 B2X5 Total Size: 30 * 30 * 5cm (12 inch *12 inch *2 inch ) Thickness: bottom 1.5cm, slot height 3.5cm Material: Polyurethane foam Color: Black Using polyurethane foam material. After special treatment device side triangular groove shape formed by the complex process of foaming silencer, sound-absorbing, sound insulation, shock absorption sponge materials. Its interior is full of small voids and semi-open pore structure can absorb a lot of energy incident on the acoustic attenuation of sound waves play a role, reducing chamber reflected sound interference and response, improve the purity of sound; noise sound-absorbing material is a high-performance product. Application: Family noise control (walls, pipes, ceilings, etc.) entertainment noise control (KTV rooms, walls, ceilings, floors, etc.) workplace noise control (light walls, partitions, conference rooms, etc.) Industrial noise control (factory walls, roofs, equipment, doors, control room, etc.) Package included: 12 x Acoustic Wedge Foam Only the above package content, other products are not included. Note: Light shooting 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.