ParaPost XT Threaded titanium alloy post. Threaded post with X-Shape retention pattern – cylindrical – where very high mechanical grip is required. Patented, low-profile threads cut through dentin with minimal insertional stress. Threads are located only in the coronal area where root canal walls are thicker. Rounded, undercut double head design for optimal core retention. Flat shoulder stop provides security against over-insertion and apical stress. Color code blue, size 4.5, diameter 1.14mm / .045“.