The GBC CombBind C20 is a simple and intuitive office binding machine and is ideal for everyday medium office use. It features the unique QuickStep WorkFlow Guide to lead users instinctively through the whole process using colour coding and imagesZQuickStep interactive user guide for simple and intuitive operation Low force punch allows easy smooth punching Vertical punch for easy and accurate paper alignment Improved paper handling with gravity fed paper fall mechanism Document size: A4, Oversize, US Letter Binding capacity: 330 sheets (38mm comb) Punch capacity: 20 sheets WxDxH: 405x150x465mm Weight: 8.5kg