Folder binding accessory LEITZ 21789, blue, capacity up to 90 sheets

LEITZ 21789 is a blue folder binding accessory designed to secure and organize loose documents quickly and without punching. Compatible with slide binding systems, this binding slide holds up to 90 sheets (capacity approx. 9 mm) and is suitable for creating compact reports, presentations and archived files. The compact format and easy insertion method let you convert looseleaf pages into a neat bound booklet instantly.

Advantages

The LEITZ 21789 offers a low-cost, practical solution for binding single or small batches of documents. Its slide binding design allows rapid assembly without special equipment or hole punching, and the blue colour provides a clear visual distinction for filing. Slides are lightweight, easy to store and available in different colours and capacities, making them adaptable for educational, office or home use.

Suitable for

• Student assignments and school projects
• Office reports, manuals and meeting handouts
• Short-term presentations and proposals
• Archiving small document sets and reference packets

Key specifications

• Colour: blue
• Maximum capacity: up to 90 sheets (approx. 9 mm)
• Compatibility: slide binding systems and multipunched slides for binder filing
• Material: durable plastic slide (standard slide binding material)
• Paper insertion: easy, no punching required
• Format: compact slide suitable for creating booklet-style bound documents

How to use

Insert the stack of loose sheets between the two parts of the slide binding accessory and close the slide to secure the pages into book form. No hole punching or additional tools are required; ensure pages are aligned before sliding shut for an even bind. For multipunched slides, after binding the set can be filed into ring binders without removing the slide.

Usage recommendations

For best results, limit each bound set to the specified capacity (around 90 sheets / 9 mm) to avoid overstressing the slide. Use different slide colours to categorise documents by project, department or priority. Store slides flat in a cool, dry place and avoid excessive bending to maintain binding performance.