ELEGOO FEP release film liner is specialized for ELEGOO MARS LCD 3D printer.<br> FEP film is a consumable accessories of LCD 3D printers and great quality is essential if you don’t want to change it too often.<br> To change your FEP film is very easy .Simply follow the tutorial comes with the package and with our new resin tank structure, you can easily replace the old FEP film in a few minutes.<br>