Binding Spines Office Products A4 38 mm (350 sheets) 50 pcs, red

Office Products red binding spines for A4 documents with a 38 mm diameter are designed to bind up to 350 sheets into a single, secure booklet. Sold in a pack of 50, these plastic comb spines fit standard comb-binding machines and offer a consistent pitch compatible with common office punch patterns. The bright red colour provides clear visual distinction for reports, manuals or presentations while the durable plastic construction ensures repeated use and steady page alignment.

Advantages

These binding spines combine durability and compatibility: the plastic material resists deformation during handling and storage, while the standard comb pitch allows straightforward insertion into pre-punched documents. Each spine holds up to 350 sheets, enabling consolidation of large documents without additional reinforcements. The pack of 50 provides a cost-effective supply for offices, schools or print services requiring frequent binding.

Suitable for

• Binding reports, manuals and training materials
• Assembling presentations and proposals
• Creating instruction booklets and user guides
• School and university coursework binding
• Batch production in print shops and copy centers

Key specifications

• Paper size compatibility: A4
• Comb diameter: 38 mm (suitable for up to 350 sheets)
• Quantity per pack: 50 pieces
• Material: durable plastic
• Colour: red
• Pitch: standard comb-binding pitch compatible with common punching patterns

How to use

Punch the document stack using a compatible comb-binding machine set to standard A4 punch configuration. Align the pre-punched pages on the machine spindle, open the red comb spine by placing it on the comb-opening mechanism, insert the punched pages onto the comb teeth, then release the comb to close around the spine. Ensure the document is properly seated and trim any overhanging edges if necessary for a neat finish.

Usage recommendations

For best results, do not exceed the specified capacity of 350 sheets per spine and use a comb-binding machine calibrated for standard pitch. Store spines flat in a dry environment to prevent warping and sort by colour if mixing sizes to avoid insertion errors.