Neoendo S rotary file is designed to have a special S-shaped cross-section. This allows minimum radial wall contact which translates to reduced stress on the file. In addition, the excellent upward debris auguring ensures that the debris isn? pushed apically or packed into the apical third. Further, proprietary heat treatment ensures that the file remains highly flexible and resistant to fracture. ADVANTAGES: Cross-section- The cross-section of files is like the alphabet ??Sharp Cutting Edge- The two blade cutting surface increases the cutting efficiency Flexible NiTi Wire- Proprietary heat treated NiTi wire with high fracture resistance Progressive Pitch- Progressively increasing pitch avoids screw-in effect Safety Tip- Non-cutting safety tip helps to reduce ledge formation, minimize canal transportation & reduce apical extrusion Length Marking- Helps to control the working length during preparation Tip Size Indicator- The colored ring indicates the tip of instrument Taper Indicator- One ring-0.04 Taper | Two Rings- 0.06 Taper