The 3M™ DBI-SALA® Sealed-Blok™ Self-Retracting Lifeline (SRL) incorporates a patented concept that helps separate components, such as the motor spring and brake, from foreign elements such as grease, moisture and dirt. In addition, it features patent-pending technology that reduces retraction speed, limiting the effects of a released lifeline on the SRL and surrounding equipment. The 3M™ DBI-SALA® Sealed-Blok™ Self-Retracting Lifeline is IP-69K rated to provide protection against ingress of dust, high tempeatures, and high pressure water, for use in extreme environmental conditions. These lifelines are available in SRL, Retrieval SRL, and RSQ™ configurations.