- The revolutionary EdgeFile X7 uses our own flexible FireWire NiTi forged with our proprietary heat-treating process. - The FireWire NiTi Alloy improves strength and flexibility. - The flexible EdgeFile™ closely follows the anatomy of the canal without straightening out, reducing the risk of ledging, transportation, and perforation. - The flexible shaft reduces the need for excessive straight-line access, allowing more tooth structure to be preserved. **For further product information , please contact Chat Support**