The Rocker can be fitted to the rope at any point. It can be used hands free, when ascending and descending. The Rocker can also be used as a rope adjuster on a work positioning lanyard or flip-line (in accordance with EN358). The Thumb-catch allows the rocker to be ‘parked’, for Work positioning or used as a Rope Access back-up device. The Rocker is fitted with non-aggressive ‘rope friendly’ cam faces.