Marine Button Keys Lanyard Outboard Marine Engine Cutoff Button Cord Tether With 7 Keys Lanyard Button Stop Lanyard For Outboard. Scalable Lanyard with retractable lanyard and rotating snap hook. Wide application for motorboats, cruise ships, and speedboats. Strong material with wax rope and PU, rust-proof stainless steel. Convenient to operate with immediate engine shut down. Reinforced safety with waterproof design and spring lanyard.