The 6" cheek has a 2.5" purchase and 3.5" shank. This ratio (difference in the length of the purchase and shank) and the swept back shank design make this a mild cheek. contact with the horse's mouth comes slowly as soft pressure to all points of contact. The main point of contact is the corners of the mouth, similar to an O-Ring snaffle. This bit may also be used to encourage collection and poll control. The mouthpiece is inlaid with copper to simulate salivation. It is 5 1/8" wide, 3/8" diameter, and curved for soft, evenly distributed pressure to the bars, tongue, and corners of the mouth.