A hand-held manual surgical instrument designed as a slender rod made of metal with an atraumatic tip, intended for exploring the uterus during a surgical procedure. It is typically intended to be used as a component of a uterine manipulator and as such may have a suction channel for applying a vacuum to fixate the manipulator assembly to the uterus; it may include graduated markings. This is a reusable device intended to be sterilized prior to use.