Ring Binder INTERDRUK 2-ring A4 50 mm blue (model 394085)

INTERDRUK 2-ring A4 binder with a 50 mm spine in blue is designed to store and organize punched A4 documents. The binder features a metal two-ring mechanism that holds documents reliably and a 50 mm capacity spine that accommodates a sizeable stack of papers for everyday filing, archiving, or project documentation. The blue cover provides a clear, professional appearance suitable for office, school and home use.

Advantages

The metal two-ring mechanism ensures secure retention of punched sheets and smooth opening and closing for easy document access. The 50 mm spine capacity allows consolidation of a large number of A4 pages into a single binder, reducing the need for multiple folders. The durable cover protects contents from wear and offers stable support when stored upright on a shelf.

Suitable for

• Office filing and document organization
• School notebooks, handouts and coursework storage
• Home records, manuals and household paperwork
• Project files, reports and archival documents

Key specifications

• Format: A4
• Ring mechanism: metal, 2 rings
• Spine width / capacity: 50 mm
• Cover colour: blue
• Intended use: punched A4 documents
• Construction: rigid cover with internal ring mechanism

How to use

Open the two-ring mechanism using the lever or tabs to separate the rings. Align punched A4 sheets with the rings and close the mechanism until it locks to secure the papers. Use the 50 mm spine to estimate how many sheets can be inserted; avoid overfilling to maintain ring alignment and prevent damage to the mechanism. Store the binder upright on a shelf or lay flat for transport.

Usage recommendations

For long-term storage, distribute heavy documents across multiple binders to reduce strain on the rings and covers. Periodically check ring alignment and avoid forcing unpunched sheets into the binder—use a hole punch sized for A4 to ensure a proper fit. Label the spine for easy identification when stored on shelves.