The KK Ultra mouthpiece, in which the olive (centrepiece) is rotated 45 degrees, ensures gentle and at the same time very effective communication with the horse. In addition, a moving part has been built into the centre piece, which promotes the concentration of the horse and improves its sensitivity to the reins. The use of the WH ULTRA bits is particularly recommended for horses that do not react accordingly to the reins aids. The tongue is stimulated and the sense of touch of the tongue is used in an incomparable way. The horse relaxes and retains focus on the tongue. It is no longer so easy to distract and accepts the precise reins of the rider better. The entire movement sequence becomes more harmonious.