By extending your ATV throttle and providing multiple thumb positions, this handy assist provides more leverage and the ability to use the palm of your hand to apply the throttle. This virtually eliminates the chance of a tired or sore thumb after a long day of riding. Your hands will be less prone to fatigue on long rides thanks to the comfortable ergonomic shape. It even has the versatility of adjustable placement for your riding comfort. Lever adjusts up and down, toward and away, and rotates to optimize control for riders with hands of any size. Soft and comfortable rubber overlay and textured surface prevent slippage. Fits most ATVs without modification to the existing throttle tab. Installs in minutes.