Magnetic 4-ring binder mechanism, from A4 to A3, aluminium composite material, PVC magnet. For paper format = A4, A3. Model = magnetic. Material = aluminium composite material. Overall height = 320 mm. Overall width = 40 mm. Product type = document holders. For documents from A4 to A3, can be used in horizontal or vertical position. For use on whiteboards or any metal surface. Can be repositioned easily and quickly due to magnetic rear. For perforated sheets: up to 500 g in vertical position and 1 kg in horizontal position. Suitable for use with perforated sheets and perforated view pockets. Used vertically, allows documents to be flipped through like a book. Made from 80% recycled aluminium. Magnetic bracket with a 4-ring binder mechanism, nickel plated. Base made of 1.2 mm thick aluminium composite panel with PVC magnet on the rear.