1. Square cross section (Four cutting edges) improves the cutting effeciency 2. Good strength to improve the resistance to instrument fractures 3. Special Taper design to reduce the friction for shaping files and increases the lifecycle of file 4. Progressive gap b/w the cutting edges improves the efficency the debris removal 5. Very less resistance due to fewer thread 6. Rounded non cutting tip design reduces the risk to cut through the root canal 7. All files can be preformed because of specail NITI memorised material 8. Good flexibility also imrove the files strength 9. Suitable for all kinds of root canal treatment 10. No need to use 6 files systems as all root canal treatment can be completed with 3 files endo angle system. which includes Orange: Opener(18#4%), Yellow (20#4%), Red (25#6%) This simple easy and efficient system makes its very affordable and highly recomended by dentist from all over world. we are providing 2 system in 1 pack means 1 pack contains 2*orange, 2*yellow, 2* red