- CC One Blue, the first reciprocating files self-developed by UDG, adopts blue nano layer to improve fatigue resistance and surface smooth, provides a great experience for dentists and patients. - Kit contains : - CC one Blue Root Canal Files 20.07 25mm. - CC one Blue Root Canal Files 25.08 25mm. - CC one Blue Root Canal Files 30.08 25mm. - CC one Blue Root Canal Files 40.06 25mm. **For further product information, please contact Chat Support**