Ring Binder Donau lever-arch A4 50 mm pink, model 3950001PL-30

Donau lever-arch ring binder in A4 format with a 50 mm spine provides a practical solution for filing and organising punched documents. The binder includes a metal lever-arch mechanism that secures papers reliably and opens smoothly for adding or removing sheets. The durable pink cover protects contents from wear and helps visually differentiate folders in a filing system, offering capacity for thick documents such as reports, manuals and project files.

Advantages

The strong metal lever-arch mechanism enables quick and secure fastening of punched sheets and ensures even pressure across the stack. A 50 mm spine increases storage capacity without significantly increasing shelf depth. The rigid cover resists bending and protects documents from dust and damage, while the bright pink colour improves visibility and organisation. The binder is suitable for repeated use and maintains alignment of documents during handling and transport.

Suitable for

• Office filing of reports, invoices and client records
• School and university coursework, project documentation and lecture notes
• Home administration such as manuals, warranty papers and bills
• Project and archive storage where clear visual identification is needed

Key specifications

• Format: A4 (suitable for standard A4 punched paper)
• Spine width: 50 mm for medium to large document stacks
• Closure mechanism: metal lever-arch for secure and easy operation
• Cover material: durable rigid board for protection against bending
• Colour: pink for easy visual identification

How to use

Open the metal lever to release the rings, align your punched A4 pages on the rings and close the lever to secure the documents. To add or remove sheets, lift the lever to open the rings, reposition pages as needed and then close the lever again. Store the binder upright on a shelf or flat in a drawer; keep it away from prolonged direct sunlight and high humidity to preserve the cover and internal mechanism.

Usage recommendations

For best results, use correctly punched A4 paper and avoid overfilling beyond the 50 mm capacity. Distribute heavy content across multiple binders when storing large volumes to reduce stress on the mechanism and covers.