Binding Spines Office Products A4 12 mm (for up to 95 sheets) Black, pack of 100

This pack of 100 black binding spines by Office Products is designed for A4 documents and provides a practical solution for secure comb-style binding. Each spine has a 12 mm diameter and can accommodate up to approximately 95 sheets, enabling neat binding of reports, proposals, manuals and presentations. The spines are compatible with standard comb binding machines and offer consistent alignment and a professional finish for office, school and home document organization.

Advantages

These binding spines deliver a uniform, low-profile binding that keeps pages firmly in place while allowing the document to open flat. The 12 mm diameter balances capacity and compactness for medium-thickness documents. Supplied in a pack of 100, they support frequent binding tasks without requiring frequent reordering. The black color provides a neutral, professional appearance suitable for a wide range of document types.

Suitable for

• Binding A4 reports, presentations and manuals
• Office document organisation and archiving
• School projects, coursework and teacher materials
• Home filing of reference documents and instructions

Key specifications

• Format compatibility: A4
• Spine diameter: 12 mm (suitable for up to ~95 sheets)
• Colour: Black
• Quantity in pack: 100 spines
• Binding type: Comb-style (open-close comb spines)

How to use

Prepare the document by aligning pages and, if required, punching holes with a comb binding punch compatible with A4 format. Open the comb spine using a comb binding machine, thread the punched pages onto the comb, then close the comb to secure the binding. Verify that pages turn freely and that the spine holds the full document thickness. For best results, distribute page thickness evenly and avoid overfilling beyond the indicated capacity.

Usage recommendations

Store spines flat in a dry environment to prevent deformation. Use the 12 mm spines for documents up to approximately 95 sheets; for thicker documents select a larger diameter. Regularly check compatibility with your comb binding machine model to ensure smooth opening and closing operations.