The unique shape of each white A4 lever arch file box provides perfect protection for A4 files up to 320 mm in height & 280 mm in depth. Ideal for postal or storage with 3 popular sizes available. These lever arch file boxes can be quickly constructed & secured closed with the locking flap, with no glue or tape required. Manufactured from rigid single wall corrugated board with a kraft finish. Also available in brown. Delivered flat packed. Sold in packs of 25 white lever arch file boxes, priced per box. Choose the correct size white lever arch file box for your needs: For one file 50 mm wide choose CLA15 For one file 70 mm wide choose CLA17 For one file 80 mm wide or two files 40 m wide choose CLA18