This pack of wire binding rings includes 100 pieces of 7.9mm spine diameter rings, suitable for binding up to 40 sheets of A4 paper.
With a 3:1 pitch and 34 loops, these double loop wire rings are compatible with both square and round hole options. Constructed with durable metal wire, these binding rings ensure tight binding of documents and provide added security and durability.
Ideal for creating high-quality documents that require permanent binding, these wire rings are suitable for use on all wire binding machines.