Ring binder Donau Master 2-ring A4 50 mm red

Donau Master 2-ring A4 50 mm red is a two-ring binder designed to hold punched A4 documents with a 50 mm spine capacity. The binder has a durable cover and metal rings to secure loose sheets for office, school or home use. It fits standard A4 filing systems and allows archiving, filing and presenting documents in a compact format.

Advantages

The binder provides a clear structure for documents with a 50 mm spine that accommodates a substantial number of punched A4 pages. Metal rings offer reliable closure and even alignment of sheets, while the cover material resists everyday wear and provides a stable support for stacked files. The compact A4 format ensures compatibility with standard shelves and filing systems.

Suitable for

• Office filing and document organisation
• School notes and coursework storage
• Home paperwork and manuals
• Presentations and handouts storage
• Archiving project documents and reference materials

Key specifications

• Format: A4
• Ring system: 2 metal rings
• Spine width: 50 mm
• Cover colour: red
• Intended use: punched A4 sheets
• Compatibility: standard A4 filing systems and shelves

How to use

Open the metal rings using the mechanism provided, insert punched A4 sheets onto the rings and close until the rings are fully engaged. Arrange documents in the desired order before closing to ensure correct pagination. Store the binder upright on a shelf or in a filing cabinet compatible with A4 binders. For removal of individual pages, open the rings, reposition or remove sheets as needed, then close the rings securely to prevent slipping.

Usage recommendations

Use A4 punched sheets with standard hole spacing to ensure smooth operation of the two-ring system. Avoid overfilling beyond the 50 mm spine capacity to prevent deformation of the rings and cover. Store the binder in a dry environment and avoid prolonged exposure to direct sunlight to maintain colour and material integrity.