Quality transfer spring files made from brightly coloured 300 micron heavyweight pressboard metal transfer spring filing system allows the insertion removal and rearranging of papers holds around 150 sheets of a4 paper capacity 38mm size 350x250mm lilac packed 25 features quality transfer spring files made from brightly coloured 300 micron heavyweight pressboard metal transfer spring filing system allows the insertion removal and rearranging of papers holds around 150 sheets of a4 pa