Fellowes 28mm 5:1 pitch metal binding spirals in silver (50 units) 5116201 offer a premium, high-volume solution for organizing A4 papers. The 50-unit pack includes 28mm silver metal wire spirals with a 5:1 pitch, capable of binding up to 250 sheets. The bright silver color enhances prestigious files, ensuring smooth sheet rotation. Suitable for institutional portfolios and consolidated financial reports.