- CC Premium UDG advanced top-notch rotary file system. In addition to the high-end open file and finishing files, it is also equipped with True3D Max cleaning file. The exquisite sterilizable packaging box is also its unique advantage. Kit Contains : - 20.07 25mm. - 25.08 25mm. - 30.08 25mm. - 40.06 25mm. **For further product information, please contact Chat Support**