Guardian Fall Protection 10918 65-Foot .1875-Inch MK Edge Series Retractable Lifeline with Galvanized Cable with Swivel Top and SS Hook Corrosion-resistant stainless steel and aluminum components result in longer life Dual braking mechanism operates quickly, arresting a fall within two feet while giving flexibility for use Dual-swivel design allows for greater mobility while keeping the lifeline in good working condition Lighter than most competitive models Each retractable includes a steel twist-lock carabineer and tagline