Standard polyurethane foam pin 200x100 cm thickness 25 mm density 33kg per m3. The presence of the pins on the foam improves the absorption capacity of ambient noise. Indeed, this form increases the sound reception capacity and therefore the number of cells that will absorb it. The polyurethane foam used in the manufacture of this product is self - extinguishing. Features: Colour: Grey anthracite (contact us for other colors) Thickness: 25mm Density: 33 kg / m3 Format: 200x100 cm Acoustic correction (absorption) of a part or a local music studio, etc. Property: Absorption and acoustic correction easily compressable, soft and comfortable to the touch of air tightness, durability Foam Packaging: soundproofing foam comes in a neat package for transport. To purchase a quantity greater than 1 meter, sending will be done according to the chosen length (For example, if you buy 2x1 meter, a length of 2 meters will be shipped).