- M3-RT retreatment files are designed to remove filling materials, such as gutta-percha, carriers and paste fillers, prior to reshaping procedures. - The technique for removing a carrier core obturator or gutta-percha alone is the same. - Designed to be used in sequence to remove filling materials. - Three easily identified files are designed for the different needs of unfilling the canal before reshaping. - Length Assorted: 22mm,18mm,16mm. - Pack contains : - 20.07. - 25.08. - 30.09. **For further product information , please contact Chat Support**