A heat-treated NiTi wire with enhanced flexibility and great resistance to cyclic fatigue. Blue heat treatment provides superior strength while maintaining flexibility to negotiate all canals. Kit contains: - 1 x #17/08 - 19 mm. - 2 x #20/0.4 - 25 mm. - 2 x #25/0.4 - 25 mm. - 1 x #30/0.4 - 25 mm.