Brand new, unused Troll Perfect. This product allows you to adjust the steering weight of your electric trolling motor. It prevents the shaft from rotating when using popular live scope systems. Please forgive any minor scratches from storage. Adjust the weight for different situations: * Heavier setting for high-speed movement on electric lakes, etc. * Lighter setting for slow, deliberate fishing. * Heavier setting for big lakes where large bass boats are used, and the bow bounces up and down in rough water, causing the trolling motor to spin. With one-touch adjustment, you can concentrate on fishing more than ever before. Quoted from the electric trolling motor repair shop's website. Keywords: MotorGuide Minn Kota FW TR Tour Troll Perfect LiveScope Live Shooting