Up to approximatley 280 sheets, 80gr. paper thickness is possible. Very good use is constituted by a complete turnover and the flatness of the sheets, as required for calendars. The spiral binding can be equipped with a file strip for archiving folders. Subsequent insertion of pages, without revision, is unfortunately not possible.
This simple and inexpensive binding version is often used for training materials and manuals up to 380 sheets 80gr.. The big advantage is that the subsequent replacement of pages is possible. Good flatness is given, but you cannot turnover the pages completley. Instant production in self-service in our printyshop in Garching.