The elliptical joint is an oval shaped link in the center of the mouthpiece, which is movable and rolls around the stainless steel center. The two joints allow the pressure of the bit is distributed over both the tongue and bars of the mouth and it shouldn’t cause any interference with the roof of the mouth. The link uses tongue pressure to encourage the horse to go on the bit and lower the head.
The sweet iron mouthpiece comes in contact with moisture and oxidises to create a sweet taste. Sweet Iron helps to increase the chewing activity, to produce more saliva and to accept the bit more easily.