The heavy mat. Frame sound insulation, especially for spring support walls, spare wheel housing, wheel housing, and other confined spaces. Neither hydrogen nor cracks even in the cold, resistant to solvents. Attenuates body sounds and resonance. Corresponds to a much thicker heavy bitumen in terms of insulation capacity. Material mineral blended polymer pulp. Plate size 35 x 100 cm, thickness 3 mm. Package contains 10 pcs.