Specifications:
Mattress height: 21 cm;
Polyurethane 3 cm, with a density of 25 kg /m3;
Felt (above the springs): density 800 g / m2;
Bonnell spring block: H = 16 cm (125 pcs /m2);
Spring wire diameter: 2.2 mm;
Woven fibers (spunbond): 15 g / m2;
Felt (under the springs): density 800 g /m2;
Jacquard fabric (on the bottom): quilted with 1 cm foam-rubber.