A4 8.5" x 11" notebook with 4 colored stripes. Extra opaque paper 70 g/m² and excellent quality; prevents ink from bleeding through, and thanks to its quick drying, it also stops its irradiation. The inner ruled is 7 mm horizontal lines, with header for titles; the high-quality offset printing of the ruled achieves greater subtleties and cleaning, highlighting writing, facilitating reading and studying. Extra-hard cardboard covers that give it strength, consistency and a greater durability; Continuous spiral with coilock system that allows you to open flat of the notebook, as well as turning it completely and prevents engages. Made from sustainable paper; features FSC Mix Credit certification ensuring that the paper is sourced from environmentally sustainable forests; made in Spain.