Binding Spines Office Products A4 45 mm (440 sheets) 50 pcs black

Plastic binding spines by office products for A4 documents with a 45 mm diameter, designed to bind up to 440 sheets. This pack contains 50 black comb spines compatible with comb binding machines, providing a reusable and secure method to assemble reports, manuals, presentations and archival documents. The flexible plastic rings allow pages to open smoothly while keeping the document intact.

Advantages

The spines are made from durable plastic that resists cracking and maintains shape under regular use. Their 45 mm diameter offers capacity for thick documents without adding excessive bulk. Black finish gives documents a neutral, professional appearance suitable for office and presentation settings. The comb design enables quick insertion and removal of pages, allowing easy updating or reorganization of contents.

Suitable for

• Binding reports, manuals and training materials
• Creating presentations and proposals
• Office archiving and record keeping
• Educational assignments and course packs
• Reusable documents that require periodic updating

Key specifications

• Format compatibility: A4 documents
• Spine diameter: 45 mm (suitable for up to 440 sheets)
• Quantity in pack: 50 pieces
• Colour: black
• Material: durable plastic combs for repeated use

How to use

Prepare your document by punching holes along the binding edge using a comb binding punch compatible with A4 paper. Align the punched pages on the opened comb spine and close the comb using a comb binding machine to secure the rings around the pages. To update the document, reopen the comb spine on the machine, add or remove pages as needed, and reclamp the comb until the pages are firmly held.

Usage recommendations

For best results use a compatible comb binding machine sized for A4 spines and ensure holes are evenly punched. Avoid overfilling beyond the indicated sheet capacity to maintain a neat finish and reliable page turning.