KK ULTRA bits take advantage of the exceptional sensitivity of the tongue. The is so extremely sensitive that it multiplies perceptions in this area dramatically.
The Double jointed KK ULTRAs have a middle link-also known as the bean-that is shortened and angled forward by 45 degrees.
When the reins are pulled the middle part of the KK ULTRA fully rests on the tongue without squeezing and the connection rings roll on the tongue. The tongue's sense of touch is utilised and clear instructions can be given.