popular binder, made from cardboard with a thickness of 2.1 mm, 1290gsm;reinforced bottom edges;outer side coated in eco-friendly polypropylene film (100 µm), with a texture of canvas;white paper inner coating;high quality lever with a compressor bar;replaceable, reversible spine label;reinforced finger grip hole,control number placed under the leverage mechanism;spine width: 75mmmeasurements: 75x320x285mm2 year warranty for the mechanism;color: violet