ISC Rocker Ropegrab Backup/Fall ArrestThe Rocker is a mid line attachable device, which can be used hands free as a self tailing device when travelling up or down the rope. The Rocker is also fitted with a 'thumbcatch' which can be engaged in order to 'park' the device on the rope. Whilst in parked mode, the user can still move the device up and down on the rope, but in parked mode, the device will not slide down the rope without intervention from the user. The Rocker is designed for use