The 3M™ DBI-SALA® Perimeter Limiter Leading Edge Anchors are the perfect solution for leading-edge work when no overhead anchor is available. The Perimeter Limiter’s design allows for up to two users, and helps to minimize fall distances while reducing swing falls. It's an easy-to-move fall protection system; once it is craned into position on the deck, you can simply push it to a desired location and it's ready to use.