Gbc Combbind c500 manual wire/plastic comb binding system CombBind™ C500 Manual Wire/Plastic Comb Binding System, Gray Four binding styles in one machine! CombBind™ provides a traditional style; pages can be added or removed at any time. ZipBind™ offers an upscale look; pages lie flat and zip and unzip for quick edits. WireBind™ is preferred for important presentations and provides a secure, permanent bind. ProClick® provides a professionally finished look; zips and unzips for quick edits. 425-sheet binding capacity; 20-sheet punching capacity. Ergonomic handle.