Post anchors are portable anchor points that provide a tie-off for a personal fall arrest system when working at height. Posts attach to a base that is permanently mounted to a secure surface. They have integrated D-rings that allow up to three workers to connect to a single post. The D-rings swivel around the post for maximum mobility. A horizontal lifeline can be strung between two posts. Anchors should always be inspected and replaced after being exposed to a fall.