3-flap elasticated folder Maxi Capacity premium pressboard 425gsm - A4 A folder cats in one piece has 3 bunited flaps which increase the filing capacity - The folder has therefore the same capacity, efficiency and safety than a filing box. It holds around 300 A4 or 24x32cm sheets. Hard glazed mottled pressboard. A folder cats in one piece has 3 bunited flaps which increase the filing capacity - The folder has therefore the same capacity, efficiency and safety than a filing box. Hard glazed mottled pressboard. Made from 425gsm premium pressboard for excellent durability It holds around 300 A4 or 24x32cm sheets.