Place the same, trusted stent when your work calls for a 5 mm size in the biliary system by choosing the Protege EverFlex self-expanding biliary stent system. The Protege EverFlex stent system is designed for the palliative treatment of malignant neoplasms in the biliary tree. The stent is made of nitinol and comes pre-mounted on an over-the-wire delivery system. The proximal and distal ends of the stent have tantalum radiopaque markers for enhanced visibility.