Self-locking anchorage carabiner. Rugged, lightweight thermoplastic housing. Stackable housing design. Integrated handle makes transport, set-up, use and storage quick and easy. Abrasion resistant and extremely durable lifeline provides added field longevity. Swiveling self-locking snap hook with impact indicator. Speed sensing all metal brake system stops a falling worker within inches. Internal energy absorption system. Reserve lifeline system. Side lifeline exit with ergonomic handle.