RETRACTABLE 3/16"X20' CABLE. With a stainless steel inertial brake system that is efficient in preventing the user from falling, but also does not cause arm fatigue for those who use it as a lift in climbing carabiners. It has a carabiner safety feature to ensure you stay attached rather than stepping over or out and hanging above ground level while your feet are on solid ground. And it includes a smart built-in grip for easy manual connection at any time.