Fellowes 8mm 5:1 pitch metal binding spirals in silver (100 units) 5115201 combine the strength of metal wire with an elegant silver tone for thin to medium documents. Available in packs of 100 units with an 8mm diameter and 5:1 pitch, they allow you to securely bind up to 50 A4 sheets. Their mirrored silver finish adds distinction to your proposals. Ideal for business proposals, sales presentations and small files.