BD™ Whitacre high-flow pencil point spinal needle, purple hub. Sterile, single use - Designed to spread the dural fibers and help reduce the occurrence of post dural puncture headache High flow Whitacre needles improve flow rate and speed the return of CSF - Yields a distinct pop as the pencil point penetrates the dura - Offers increased tip strength to minimize bending or breakage -Precision-formed side hole enables directional flow of anesthetic and reduces the possibility of straddling the dura - Tracks straight when advancing through ligaments toward the dura - Unique translucent window hub allows for easy visualization of CSF