Binding Spines Office Products A4 25mm (240 sheets) Set of 50, black

Office Products A4 binding spines with 25 mm diameter are designed to secure and organize up to 240 sheets in A4 format. Supplied as a set of 50 black plastic spines, they work with standard comb-binding equipment and can be used manually or with binding machines. The spines provide a simple way to finish reports, presentations, manuals and other multi-page documents for office, educational or home use.

Advantages

These black binding spines offer consistent page alignment and a neat, professional appearance without adhesives. The durable plastic construction resists cracking and keeps documents intact during handling and storage. Compatibility with standard comb-binding machines and manual insertion makes them versatile for different binding workflows, while the 25 mm diameter accommodates thick documents up to approximately 240 sheets.

Suitable for

• Office reports and presentations
• Training manuals and handbooks
• School projects and coursework
• Financial records and documentation
• Home organization and recipe books

Key specifications

• Format compatibility: A4
• Diameter: 25 mm (suitable for up to 240 sheets)
• Quantity in pack: 50 spines
• Color: black
• Material: durable plastic
• Compatibility: standard comb-binding equipment and manual binding

How to use

Prepare the document by aligning and punching holes along the binding edge using a compatible comb punch. Select a 25 mm spine and open the comb on the binding machine or manually spread the comb rings. Insert the punched pages onto the comb rings evenly, then close the comb to secure the document. Verify that pages turn freely and that the spine is fully closed to prevent page loss.

Usage recommendations

For best results, use a comb punch that matches standard A4 hole patterns and avoid overfilling the spine beyond the capacity indicated. Store spines flat and away from direct heat or sunlight to maintain flexibility and prevent deformation.