This universal switch allows an engine to be instantly shut down in an emergency. It has 4 posts with two short and two open in each switch position to allow installation in virtually any vehicle. These are highly recommended for use in any craft and give you the peace of mind that if you have an emergency (roll-over, driver ejected, etc.) the engine will be shut down.

Lanyard kill switches are a requirement for any racing hovercraft, and are required by law in some states.