The Echelon™ range of over-the-wire micro catheters is created from a technology that makes it easy to push and track. These micro catheters offer excellent access, as well as stability. Its proprietary nitinol braided design features additional proximal push and soft navigation. Four specific zones utilize nitinol and offers control along the catheter as well as shaft support, flexibility to the tip, and smooth transitions. The micro catheters large ID permits a better flow rate than other micro catheters. Its small OD allows the guide catheter to have more flow, which is useful during angiographic injections. The tip of pre-shaped micro catheters is at its best upon removal from the package and following simulated use.