The Cordis EMERALD™ Diagnostic Guidewire is used to guide catheters and provides percutaneous entry and it nicely compliments the Cordis diagnostic catheter/catheter sheath lines. The device is designed to provide maximum endurance, performance, solid tensile strength, safety and maneuverability so that flaking occurrences are reduced. The proprietary PTFE coating increases the chemical resistance and lubricity of the wires and the unit ensures exact tolerances. Unit can be ordered in various sizes/shapes.