The Kuhn Frontal Seeker No. 3 DE is a highly specialized instrument used for identifying and accessing the frontal sinus ostium during functional endoscopic sinus surgery (FESS). Its curved, precise tip and double-ended (DE) design are tailored for navigation and retraction in tight sinus spaces, particularly the frontal recess. The No. 3 size offers an ideal balance for use in adult patients, providing sufficient reach and flexibility for optimal control and precision when working in the anterior ethmoid and frontal sinus areas.