Features: - Shape-D, when confronted with a calcified gap, utilizes its superior piercing ability to find the weak point in the root canal and squeeze out a path to the root apex. - And it is able to follow the shape of our root canals to a greater extent. - Special treatment of the tip, taking into account both safety and piercing ability. - Shaped D cross-section, strong center positioning ability, large core steel, strong piercing ability. Specifications: - Size: #12. - Length: 25 mm.