The standard binder from Donau is a practical and functional organizational tool designed for storing A4 documents. With a spine width of 5 centimeters and a robust lever mechanism, this binder allows for easy handling and quick access to its contents. The use of high-quality polypropylene (PP) as the material ensures durability and resilience, while the 2.1 mm thick fiberboard adds extra stability to the binder. Weighing 0.4 kilograms, the binder is easy to transport and is ideal for use in the office, at school, or at home. The red color gives the binder a striking and appealing look that fits well in any environment. Made in Poland, this binder offers an eco-friendly solution for document organization and helps reduce paper clutter.