Securely interconnects main and auxiliary engines up to 25hp so that you can safely steer both engines simultaneously from your boats main wheel. Allows an unrestricted forward view, ideal for extended trolling or piloting close to shore. No need to disconnect when switching back to main engine. Self-adjusting stainless steel brackets, fitted with smooth-action Dupont Delrin ball joints, allow each engine to precisely mimic the movement of the other, even if one is raised or lifted. Vinyl-coated brackets, with stainless steel mounting hardware, prevent scratching of engine housings and resist corrosion. Requires no drilling of engine housings to install.