Kuryakyn Kinetic Throttle Boss When added to the Kinetic Grips, this little treasure can make all the difference in the world on a long ride. Features: Small, adjustable paddle that is positioned under the palm of the throttle hand Allows the operator to slightly relax their grip and maintain a constant speed Can be positioned on either the right or left side Coordinates with Kinetic Grips 711-878 or 711-880