[Environmental protection and safety] Made of high-quality environmentally-friendly material, these studio foams are durable and effective, without health risks, and are safe to use. [Noise Absorption] Our sound foam panels can suppress and diffuse the low and medium sound waves in the room to minimize interference and increase sound clarity. There are 50 packages of these sound insulation foam panels, each tile is 0.6 square feet, 1 inch thick acoustic wedges, and 12 packages cover an area of 0.6 square meters. [Easy to install] These studio sound-absorbing panels can be used as acoustic covers for walls, ceilings and doors, and can be easily fixed with staples, nails, screws, nails or glue. [Widely used] Our sound insulation foam board is very suitable for recording studios, vocal kiosks, control rooms, and also very suitable for home theaters, professional cinemas, concert halls, etc. colour:Black Material:Polyurethane size:30 x 30 x 2.5cm 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.