These DISPOSABLE Cervical Dilators are especially useful in locating and dilating the external OS, the cervical canal and the internal OS. They are particularly valuable instruments to be used on post-menopausal patients with cervical stenosis. BLUE COLOR FDA-GMP Compliant ISO 13485 Certified CE Mark. Length: 215 mm, Taper: 23 mm (1.75 mm Tip to 3.8 mm OD). 25/BX. Priced per box.