... stapler adapts to binding all kinds of presswork,such as thin books,periodicals,magaxines,advertisements,instructions,etc.generally speaking, ... a book at the same time.it can finish binding once no matter they are single-page of double ... Handsome BookbindingMore Protection Prolong Binding Head's life Specification: max.binding dimension(mm)450mm*305mmmix.binding dimension(mm)127mm*89mmbinding ...