The SAI Mouse Infusion Harness Kit includes the harness, tether, tether extension line and swivel that you need for each mouse in your infusion study.  Simply apply the harness and connect the line using the integrated stainless steel connector.  Now you are ready to place the swivel in your existing  and begin your study. For studies requiring a second catheter for blood draws or additional intermittent infusions, a second extension line is available.  This extension line runs up and out of the tether, for easy, direct access.  All components work together to save time, reduce costs, and improve the integrity of your infusion and access systems.