Professional board as a change system for high hygiene requirements.
For this you need a file board and file sheets, which are available for the board in two thicknesses (100 and 180).
The file sheets are glued on the board in front of the customer.
After completion of the modeling, these file sheets are simply removed from the board and disposed of in the trash.
Since the board is made of plastic, this can be reused after a disinfection.