Professional trade binding wire elements in 3:1 and 2:1 pitches. Available in a wide range of colours and diameter sizes.
3:1 Pitch Binding Wires - 3 punch holes to 1 inch. They are suitable for smaller documents up to 135 sheets 80 gsm paper.
2:1 Pitch Binding Wires - 2 punch holes to 1 inch. They are suitable for larger documents up to 340 sheets 80 gsm paper.