FrogLine RetroLink Intermediate Anchor (STAT.FROGRET001) What am I used for? A horizontal lifeline system to be mounted into metal roof sheeting and steel purlin construction. Energy absorbing horizontal lifeline. Specifically for use with permanent horizontal height safety lifeline systems. Suits roof pitches up to 25 degrees. Constructed entirely of 316 stainless steel with foam barrier tape. Designed to be mounted into various metal profile roof sheeting with steel purlin construction. Equipped with an engineered energy absorbing region to minimise loads on users and structures in the event of a fall. Intended for use with 8mm stainless steel cables. The FrogLine has been rigorously tested and manufactured in accordance with Australia and New Zealand Standard AS/NZS 1891.2 and European EN 795:2012, CEN/TS 16415:2013.