- One file for incredible efficiency. - Superior Flat-sided design: more room for bypass and debris removal, significantly decrease screwing effect. - Taper Indicator. - ISO Standard color. - Heat-treated Control Memory NI-TI Wire: Enhance flexibility and resistance to cyclic fatigue for safe treatment. - Box contains : - 1: Size 17, Taper 8%, Yellow. - 1: Size 20, Taper 4%, Yellow. - 3: Size 25, Taper 4% , Red. **For further product information, please contact Chat Support**