Specification: 1. Control - The reciprocating technology means that it will only shape the canal when pressure is applied, giving you the feeling of complete control. 2.Simplicity - X-one also simplifies the procedure, in most cases requiring just one NiTi instrument per root canal treatment. 3. Strength- The M-Wire Nickel-Titanium technology provides overall flexibility and resistance to cyclic fatigue, the leading cause of file separation. In fact, the tougher the instrumenting challenge, like shaping severely curved to the apex, the more apparent the M-Wire NiTi’s advantages become. Packing List: Assorted: Small File 1 PCS Primary File 1 PCS Large File 1 PCS 3Pcs/package.