keylessoption pwc jet ski waverunner key lanyard stop kill switch safety for yamaha -red keylessoption high quality replacement waverunner, jetski key lanyards. these are a crucial safety feature when operating jet skis in the event you fall off. once disconnected it immediately kills the power to the ski until you are safely able to re board the ski. this fits all yamaha watercraft & various other jet ski makes and models. please compare our picture to your current safety lanyard to be sure they look the same. just attach the metal clip to your lift jacket and you'll be ready for a day of riding ! metal key clip, not cheap plastic that will crack or break overtime.