Class II structural polymer fibres, in compliance with EN 14889-2:2006, with a length of 50 mm respectively, developed to improve the performance characteristics of conventional concrete, pre-cast concrete and shotcrete. TECHNICALDATA: Dosage: 1.5-3 kg /m³ of concrete, depending on the required performances. Packaging: – 3 kg plastic bags; – carton box containing 10 water soluble bags 1.5 kg/each.