David Driver's X-Rigging Rings have revolutionised tree rigging, allowing arborists to move the friction from the bollard at the bottom of the tree to the X-Rigging Rings at the top rigging point. The use of the X-Rigging Ring reduces the force factor on the rigging point and makes the load easier to handle for the groundie. Simply put, the job goes smoother. X-Rigging Rings are suitable for use with basal lowering devices as well, offering the aerial arborist an even greater degree of control when lowering bigger pieces.