ITEM NAME:2x Double Boat Outboard Engine Cord Kill Stop Switch Safety Lanyard Tether@Z Tether Material: Fresh ABS & nylon fiber inside. Color: Red Standard: 20#1015 USA Standard line. Tube Diameter: 3mm Tether Length(No stretch): approx.9.8cm It is a kill switch safety tether. Fits for most brand outboard engine motor, such as Yamaha, Honda, TOHATSU and ect..It is a kill switch safety tether. Tether Material: Fresh ABS & nylon fiber inside. Tether Length(No stretch): approx.9.8cm.