Ring Binder Donau A4 4-ring 35 mm red — Donau 3733001PL-04

Donau A4 4-ring binder 35 mm in red is a practical document organiser designed for storing and presenting A4 punched papers. The binder features a durable cover and four metal rings that secure reports, manuals and loose-leaf documents. With a 35 mm spine capacity it accommodates multiple dozen sheets depending on paper weight, and the red colour provides clear visual identification on shelves and in archive systems.

Advantages

The four-ring mechanism ensures stable alignment and prevents documents from shifting. A robust cover resists daily handling and protects contents from bending and light wear. The 35 mm spine offers a balance between capacity and a slim profile, making the binder suitable for shelving or transport. The red finish improves visibility and helps organise documents by category or priority.

Suitable for

• Office filing of reports, meeting notes and protocols
• School materials, assignments and course handouts
• Home administration documents such as bills and manuals
• Presentations and project documentation requiring secure fastening

Key specifications

• Format: A4
• Ring type: 4 metal rings for punched paper
• Spine width: 35 mm capacity
• Cover: durable cover designed for frequent use
• Colour: red for easy identification

How to use

Open the rings using the release mechanism, align punched sheets with the rings and close them to secure documents. Place labels or spine inserts if required to identify contents. Store the binder upright on a shelf or lay flat for transport; avoid overfilling beyond the 35 mm capacity to maintain ring alignment and cover condition.

Usage recommendations

For long-term storage, group documents by topic and use dividers to distribute bulk evenly. Use standard A4 punched paper and avoid inserting unpinned bulky items that could strain the rings. Clean metal rings periodically to prevent debris accumulation and ensure smooth opening and closing.