Transfer spring files made from premium quality heavyweight 315gm2 100 recycled manilla metal transfer spring filing mechanism allows the easy insertion removal and rearranging of papers expanding pocket on the inside back cover for storing loose leaf papers capacity 38mm packed 25 size foolscap blue made from premium quality manilla 315gsm size of file 35x24 2cm suitable for foolscap documents larger than a4 metal spring mechanism for easy insertion and removal of punched paper