Universal compatibility The stop switch with key rope is compatible with all series of motor boats and outboard motors that do not require a battery or electric start. It is intended for emergency shut off to enhance boat safety. Durable waterproof construction Made of high quality plastic, the switch is waterproof and highly durable. It meets strict quality control standards to provide reliable performance in marine environments. Releasable and tangle-free design The expandable and flexible design includes a rotary mechanism to prevent tangles and allow smooth movement. This helps keep the lanyard clear and easy to use during operation. Easy installation The key rope for the switch is user friendly and can be quickly mounted to the engine stop switch. The installation process is straightforward and practical for boat owners. Use scenarios - Emergency shut-off on small boats and outboard motors that do not require a battery or electric start, enabling rapid stopping if the operator falls overboard. - Maneuvering and docking in tight spaces, providing a quick and reliable way to stop the motor if control is compromised. - Boats operating without battery or electric start, where a dependable manual kill switch is essential for safety during routine boating activities.