File binder Donau A4 PP 4-ring 50mm blue — Donau segregator ofertowy 2788504PL-10

Donau A4 PP 4-ring file binder with a 50 mm spine is a practical storage and organisation solution for punched A4 documents in office, school or home environments. The cover is made of polypropylene (PP) for light protection against dirt and moisture, while the four-ring mechanism provides standardised attachment and reliable holding of punched paper. The 50 mm spine accommodates thicker document sets, making the binder suitable for active filing and medium-term archiving.

Advantages

The polypropylene cover is durable, lightweight and resistant to creasing, ensuring the binder retains shape under regular use. The 4-ring mechanism offers consistent alignment and easy opening and closing for adding or removing pages. A wide 50 mm spine increases capacity compared with slim binders and helps keep large document collections together in a single folder. The simple design supports easy labelling and shelf storage.

Suitable for

• Organising office reports, manuals and project files
• Storing school materials, worksheets and portfolios
• Home document management such as warranties, invoices and contracts
• Temporary archiving of printed documents and forms

Key specifications

• Format compatible with punched A4 paper
• Cover material: polypropylene (PP)
• Ring mechanism: 4 rings, standard spacing for punched sheets
• Spine width: 50 mm for medium-to-high capacity
• Colour: blue
• Construction: hard-backed flexible cover for light protection

How to use

Open the 4-ring mechanism and insert punched A4 sheets onto the rings, then close the rings until they click to secure the pages. For best organization, group related documents and use dividers or labelled tabs before inserting them into the binder. When the binder is full, do not overload beyond the 50 mm capacity to avoid strain on the rings and cover. Store the binder upright on a shelf or in a filing cabinet to maintain shape and ease of access.

Usage recommendations

For prolonged document preservation, keep the binder away from direct sunlight and high humidity. Use cardboard or plastic dividers to separate large sections and apply clear labels on the spine or front cover for quick identification.