Designed to protect a worker if a fall occurs that involves going over an edge. Features a shock absorber integrated into the lifeline, lowering fall arrest forces. Durable, corrosion-resistant stainless steel and aluminum construction extends service life. 30% lighter than competitive models in class for easy handling. Dual swivels design (unit top and snap hook) minimizes lifeline twisting during use. Rated for up to a 310 lb user in leading edge applications and up to a 400 lb use when mounted overhead.