The Cusco speculum is a bivalve (two-bladed) instrument widely used in gynecology for vaginal and cervical examinations. The 75x17mm model is often specified for virgin, pediatric, or adolescent patients due to its ultra-narrow width (17mm) and shorter blade length (75mm). This design minimizes discomfort during the first gynecological examination or when a narrower vaginal canal is present. Its self-retaining design and side-screw lock allow for hands-free operation, making routine cytological sampling and screening less intrusive.