This size wire is suitable for books between approx 96 to 125 sheets of 80gsm paper.

The double-loop wires are produced open to be inserted in pre-punched holes of the suitable dimensions. Once inserted in the proper holes they are simply crimped closed with a wire closer. 3:1 has 34 holes on an A4 sheet. Sold in boxes of 50.

3:1 Pitch 3 holes per inch 34 loops per A4 sheet

Note: Please ensure your wire closer has a minimum open size of 30mm.