NC Endo Rotary Files prepare the root canals during endodontic therapy or to remove the root canal obturating material while performing retreatment. Pack contains: - NC opener 17 mm. - NC file #15 25 mm. - NC file #20 25 mm. - NC file #25 25 mm. - NC file #30 25 mm. - NC file #35 25 mm. **For further product information, please contact Chat Support**