The black binder has a beautifully rounded spine, providing extra space for your documents. S.O.H.O. wide binder | A4 | 5cm | 4-ring mechanism | black Loving craftsmanship: Manufactured in DE & CZ | German Brand Award: As "Sustainable Brand" | High-quality cardboard: With elegant ribbed embossing | Suitable for DIN A4: WxHxD: 50x320x285mm Frequently Asked Questions: Question: What is the capacity of the A4 binder? Answer: The binder with a rounded spine features a sturdy 4-ring mechanism with a filling height of 5 cm. It holds 200 to 250 sheets of paper with a thickness of 80 g/m², making it ideal for notes, project documents, or documents you want to regularly add to or exchange. Question: What is the difference between an A4 folder and an A4 binder? Answer: The A4 folder has a lever mechanism and offers more storage space (up to about 500 sheets) – ideal for permanent filing and storage in the office. The A4 binder has a 4-ring mechanism, is lighter, more compact, and perfect for flexible use with up to 250 sheets – e.g., for projects or on the go. Question: How and from what material is the binder made? Answer: The binder from the S.O.H.O. organization range is carefully handcrafted from high-quality, ribbed or textured cover paper and reinforced with sturdy cardboard. Question: Is the binder compatible with other office supplies? Answer: Yes, absolutely! Our S.O.H.O. organization range stands for Smart Office