Slider cap that receives a slider to thereby reduce the amount of water introduced around the perimeter of the slider. It designed to protrude slightly further than your fairing on both sides of your bike,in order to substantially reduce damage to your plastics, engine casings & frame in the event that your bike ends up on it"s side,so they help to protect the frame, engine cases and bodywork/fairings to minimize the cost of repair even in a low speed fall