Leitz Spiral Binder for commercial binding. With a robust spiral mechanism of 80 mm for standard hole punching, featuring labeling lines on the front cover. By releasing the hook rail, the spirals can be bent like a book spine. This allows for flipping through the pages like a book and reading individual pages up to the edge without creasing. Material: 100% primary cardboard 300 g/m². Capacity: up to 250 sheets of A4. Size: 240 x 318 mm for A4. Color: brown.