High-quality lever arch file for professionals. Unique No. 1 Power mechanism ensures a perfect result.* Features;* Patented No. 1 Power mechanism with increased locking force for always precise closure, even after 10,000 uses* Perfect alignment of the 2 parts of the mechanism even when the binder is full* Spine pocket allowing label replacement for easier personalization* Grip ring, locking notches, and metal reinforcements for stable storage and practical use* Capacity: 350 A4 sheets (80 g/m²)* 3-year warranty on the mechanism, FSC® certified