It can be hard to hold the K&M Micro Adjustable Neck Turner due to its compact size, especially in higher volume use. So this item is in direct response from K&M's customers. The Ergo Holder is manufactured with the traditional K&M quality, which is a machined component from Aluminum providing a fatigue proof grasp of the neck turner. Its mass also provides the added benefit of a heat sink to help dissipate heat from the pilot during the turning process. The neck turner body easily assembles into the Ergo Holder and is held in place with one set screw, which can be tightened with the supplied hex key. Neck Turner not included, this is just the Ergo Holder by itself.