Gradient flexibility is produced with patented technology, presenting different flexibility. Progressive flexibility transition from the upper to the apical. Depth marking area helps the file to be well centered in the root canal and effectively conduct axial force source. Respect natural root canal anatomy, and get accurate feedback from file tip with the true expression of root canal morphology. Sequential shaping reduces the difficulty of preparing small and curved root canals. Specifications: - Size: #20. - Taper: 6%. - Length: 25 mm.