A portfolio ready made cardboard or other similar material consisting of a sheet preferably has marked several folds to form the spine in which specifications are fixed on one of the sheets one or more eyelets holding one or more elastic strands passing then using other eyelets are on the same sheet will form elastic lines paths in the inside of the sheet itself; and having in the other eyelets sheet; hook to secure the closure of the specification made with said elastic threads.
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