Ring binder Donau Master 2-ring A4 75 mm spine, navy blue

Donau Master 2-ring A4 ring binder with a 75 mm spine in navy blue is designed to store and organise punched A4 documents. The binder has two round rings for secure fastening of punched sheets, a rigid 75 mm spine that supports upright storage on shelves and a durable cover suitable for frequent handling in office, school or home environments. Its dimensions accommodate standard A4 paperwork and allow collection of multiple documents, making it a practical choice for filing, archiving and project documentation.

Advantages

The binder combines a hard cover and a firm spine to keep documents flat and protected while standing on a shelf or transported. Two rings provide stable retention for punched pages and reduce the risk of sheets slipping out. The 75 mm spine offers increased capacity for thicker document sets without significantly increasing shelf width, and the navy blue finish gives a professional, neutral appearance suitable for mixed workspaces.

Suitable for

• Filing and archiving A4 documents
• Organising project documentation and reports
• School and university coursework storage
• Office records and administrative files
• Home paperwork and manuals

Key specifications

• Format compatibility: A4 punched sheets
• Ring type: 2 round rings for punched paper
• Spine width: 75 mm
• Cover: rigid, durable material for frequent use
• Colour: navy blue
• Storage orientation: upright shelf-friendly spine

How to use

Open the binder rings by pulling the ring tabs or applying gentle pressure according to the ring mechanism, insert punched A4 sheets onto the rings, then close the rings securely so pages lie flat. Place the binder upright on a shelf using the spine for labeling or store it horizontally for transport. Use dividers or labelled separators inside the binder to structure sections and locate documents quickly.

Usage recommendations

For long-term archiving, use reinforced punched sheets or plastic sleeves to protect frequently handled pages. Label the spine clearly for quick identification on shelves and avoid overfilling the binder beyond the 75 mm capacity to maintain ring alignment and cover integrity.