A stepped-care innovation built on the success of Classic TF and includes the same advanced Twisted File technology which is 70% more flexible than other rotary NiTi files.* Designed to work with our Elements Adaptive Motion Technology; an industry first innovation that allows the TF Adaptive file to self-adjust to intra-canal torsional forces. This gives you exceptional file control through the entire procedure. An intuitive, color-coded system that features a simple 3-file technique. Medium/Large Canals.