The portfolios are very well suited for the handing over of documents (eg to clients), since they are well finished and thanks to the glossy surface (the outside; inside they are white matt) look very classy. Up to 20 A4 sheets (80g) fit without somewhere oozes something or stuffed wallet looks exaggerated ugly. More expensive portfolios usually have one more additional rebate, so that you can insert more leaves, but I personally do not need.