STONCEL Safety Boat Motor Outboard Kill Switch Key Lanyard Ignition Red 100% Brand new and quality. It is a kill switch safety tether., the switch fits for most brand Outboard Engine such as Yamaha, Honda, SUZUKI, MERCURY, TOHATSU, HYFONG, HAIDE, ZONGSHEN etc Length of safety lanyard (red one):150cm Used to cut off the power/ignition of the outboard engine