Fellowes 5:1 pitch 16mm white metal binding spirals (100 units) 5113301 offer greater capacity and stability for organizing A4 papers. The pack contains 100 units with a 16mm diameter white metal wire (5:1 pitch), capable of binding up to 130 sheets. The white color provides an impeccable and professional look, allowing pages to be turned completely backwards. Ideal for training notebooks, cookbooks and compendiums.