The 3M™ DBI-SALA® Sealed-Blok™ Self Retracting Lifeline, 3400653 is a sealed SRL engineered to keep all dynamic components, such as the motor spring and brake, safe from foreign elements such as grease, moisture and dirt. Designed with an anti-ratcheting brake system that stops a fall within inches, this SRL is features 175 ft (52.5 m) of 3/16 in in (5 mm) galvanized steel cable, aluminum housing and corrosion-resistant components. This SRL includes a pivoting anchorage loop, a Saflok™ anchorage carabiner and a swiveling snap hook with impact indicator. A 4 ft (1.2 m) cable tie-off adaptor with carabiner makes it easy to attach this SRL to a harness, and the FAST-Line™ cable lifeline replacement system conveniently allows you to replace the lifeline in the field.