[Environmental Protection and Safety] Made of high-quality environmentally friendly material, these studio foams are durable and effective, with no health risks and are safe to use. [Sound Absorption] Our acoustic foam panels can dampen and diffuse low and medium sound waves in the room to minimize interference and increase sound clarity. There are 50-pack of these soundproofing foam panels, each plate is 0.6 square feet, 1-inch thick acoustic wedges, and 12-pack covers an area of 0.6 square meters. [Easy to Install] These soundproofing studio panels can be used as acoustic blankets for walls, ceilings, and doors and can be easily attached with staples, nails, screws, tacks, or glue. [Widely Used] Acoustic insulation foam panel is very suitable for recording studios, vocal booths, control rooms, and also very suitable for home theaters, professional theaters, concert halls, etc. color: Black Material: Polyurethane Size: 30 x 30 x 2.5 cm Package Contents: 50 x Acoustic foam panels 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.