This outboard ignition emergency kill stop switch key lanyard rope clip is for Mercury Mercruiser boat engine. While the toggle switch is not the original one, it acts the same as the it. Premium Quality: The rope clip is made of high quality plastic for durability, the lanyard rope is made of high quality nylon fiber and aluminum alloy which extendable and flexible, High water resistance, Wear it on your hand and youll feel comfortable. Replacement switch: The kill switch lanyard is coiled and stretchable, uniquely designed to prevent accidental snagging. The package contains a strap, you can fix it on your wrist, if you accidentally fall to one side, the engine will stop. Professional Design: Coiled design. Extendable and Flexible. The buckle covered by rubber protection design, it doesnt hurt you when it rebounds. You can buy it with great confidence. Switch Operation: Easy to install. When the lanyard is pulled, the switch goes to off and will send the same signal to the engine. You can complete in a few minutes.