9.5mm A4 Black Wiro Binding Rings - 3:1 Ratio Cut Pieces

These 9.5mm A4 black wiro binding rings are 3:1 ratio cut pieces designed to hold up to 80 sheets of standard 80 gsm paper. With a larger diameter than standard rings, these heavy-duty metal binding loops are ideal for thicker books, directories, catalogues and bound reports. The durable black-coated metal construction ensures a professional finish that lasts.

How to Measure Wiro Binding Rings

Wiro binding rings are measured by diameter across the loop at its widest point. A 9.5 mm ring holds approximately 80 sheets of 80 gsm paper. Always match the pitch ratio (3:1) to your binding machine for proper alignment. For best results, choose a ring diameter that leaves 3-5 mm of extra space beyond your paper stack thickness.

Technical Specifications

Frequently Asked Questions