Leifheit's easy-fit screw-in ground socket is an optional accessory to go with any outdoor rotary dryer with a 5cm diameter rotary pole. The socket has a spiral screw and a steel core to give additional rigidity so it can be wound into the lawn with the bar provided. No cementing is necessary. Care needs to be taken to ensure that the screw is upright. Should the Rotary Clothes Line need to be relocated, it is easy to simply unscrew the socket from the lawn and insert in the new location. 5 years Guarantee.