With a blunt, atraumatic tip that allows for gentle insertion and minimizes vessel trauma, the 5½" Garrett Vascular Dilator Set of 9 is a set of precision instruments for controlled dilatation of blood vessels during cardiovascular and thoracic surgeries. The set includes dilators with tip sizes ranging from 1.0 mm to 5.0 mm in 0.5 mm increments, offering versatility to accommodate different patient anatomies.