It is the low density pocket springs system, 180 springs per square meter, available both in no-zones and 7 zones versions. The characteristics of this product is the cheapness joined to a good level of layers of polypropylene hypoallergenic tissue glued on the flat surface. The springs, manufactured with high standards of carbon and of temperate in 1.80/2.00 mm guarantee support and long lasting resistance. This product is studied for a medium market, that is searching for quality/technology ratio and for a medium market, that is searching for quality/technology ratio and for a competitive price.