Ring Binder Donau 4-ring A4 35 mm yellow (3733001PL-11)

Donau 4-ring A4 ring binder with a 35 mm spine in yellow is designed to store and organize A4 documents efficiently. The binder features a four-ring mechanism that secures punched paper and a transparent coloured cover for quick visual identification. With a 35 mm capacity it accommodates moderate volumes of documents while keeping pages flat and accessible for everyday office, school, presentation or home use.

Advantages

The rigid spine and durable cover provide stable protection for stored documents and resist bending during handling. The four-ring mechanism ensures reliable alignment of punched sheets, reducing page movement and preventing accidental tearing. The yellow visible cover simplifies colour-coded filing systems, making it easier to find specific dossiers. The binder is lightweight yet sturdy, suitable for frequent retrieval and transport between locations.

Suitable for

• Office filing and archiving of A4 reports and invoices
• School or university notes and coursework organization
• Presentations and portfolios where a clean, coloured cover is needed
• Home document storage such as manuals, guarantees and receipts

Key specifications

• Format: A4
• Spine width / capacity: 35 mm (suitable for moderate volumes of paper)
• Ring type: four-ring mechanism for punched sheets
• Cover colour: yellow, semi-transparent/visible
• Material characteristics: rigid cover with durable finish for protection and handling

How to use

Insert punched A4 sheets onto the four-ring mechanism by opening the rings, aligning the holes with the rings and closing them until they click into place. Use the labelled spine or visible cover colour to store the binder within a filing system. When adding or removing documents, open only the rings needed to minimise wear on punched edges and maintain alignment. Store the binder upright on a shelf or flat in a drawer to preserve the spine shape and protect contents from dust and bending.

Usage recommendations

For best results, use standard A4 sheets with compatible three- or four-hole punching aligned to the binder rings. Avoid overfilling beyond the 35 mm capacity to prevent strain on the ring mechanism. For long-term archiving, place heavier or frequently accessed documents toward the centre to reduce stress on the binder cover and rings.