High quality ring-binders made from refined 1mm Aluminium to carry and secure your A4 documents. These items are a necessity for any work space, at home or at the office. Made to be accessorised to your preferences, these binders are available with the options of 2 or 4 round or D-shaped rings in various ring (16, 20, 30, 40, 50mm) and spine sizes (30, 40, 50, 65mm wide spines) and is offered with various branding options. These files are both reusable and cost effective.