The Rocker can be fitted to the rope at any point.  It can be used hands-free, when travelling up and down the rope.  The Rocker has been designed for use without a Shock-absorber. The Rocker can also be used as a Rope Adjuster on a Work Positioning Lanyard or Flip-line (in accordance with EN358). The  Rocker is a self-tailing device, but the Thumb-catch can be used to park the device on the rope, for Work Positioning or use as a Rope Access back-up device.  The Rocker is fitted with non-aggressive 'rope friendly' cam faces. For self-parking back-up devices, see the RP890/891 & 892 RED Back-up Device in the 'RELATED PRODUCTS' below. The Rocker is suitable for 2 person load (maximum dynamic load rating 200kg/440lbs).