Garmin Step Mount f/DownVu & SideVu Transducer [010-12106-00]Step Mount Easily attach your compatible 4 , 8 or 12 pin transducer to the step of your boat with this mount, which provides excellent sonar returns at low speeds. The mount protects the transducer from underwater obstructions and creates no drag on the boat. And since the transducer is out of the water, sonar will not track bottom when the boat is on plane. WARNING: This product can expose you to chemicals which are known to the State of California