The Mani GPR File Size #70-1S is a stainless steel endodontic file crafted from Mani’s proprietary Hard Fiber Stainless Steel, which provides exceptional flexibility and fracture resistance, ensuring durability even under stress. The file is designed for the safe, effective, and solvent-free removal of gutta-percha during root canal retreatments. Its innovative square cross-section helps facilitate debris removal while minimizing canal transportation or excessive dentin removal. The file works by catching the gutta-percha in its first groove and advancing naturally with soft rotation, requiring no torque control or reversal. Clinicians pause the file in the middle of the canal, applying a pull-stroke to remove debris effectively. This file is specifically indicated for use from the crown to the middle section of the root canal depending on the canal shape and is useful in straight canals. Its flexibility and memory effect reduce the risk of file fracture, making it ideal for precise canal shaping and retreatment efficiency.