- Endostar NiTi K-files are made of nickel-titanium alloy and are very flexible and safe. - Their resistance to bending is around 10 times greater than the resistance of stainless steel instruments. - They are recommended for treatment of curved root canals. Great flexibility of NiTi instruments decreases the tendency to straighten the root canal. - The risk of wedging instruments or perforation of the root canal is lower. - Size: 45/80. - Length: 25 mm. **For further product information, please contact Chat Support**