Fellowes 6mm 5:1 pitch metal binding spirals in black (100 units) 5110001 offer a discreet and durable solution for thin notebooks and reports. The box includes 100 6mm black metal spirals with a 5:1 pitch, suitable for firmly binding up to 30 A4 sheets. The black color lends a formal and executive touch even to small documents. Ideal for business budgets, meeting minutes, and operational summaries.